MK1 Mod 1 User Manual - Primary Weapons Systems
Contents
1. 22 Section GENERALINFORMATION nemen tenet dene debe nene lid es eb En Ee rug su Ense rir Venue 22 SCOPE 22 Section II EQUIPMENT DESCRIPTION AND 22 1 2 EQUIPMENT CHARACTERISTICS CAPABILITIES AND 22 PWS MODI USER MANUAL VER 2015 01 1 3 LOCATION AND DESCRIPTION OF MAJOR COMPONENTS 24 TAEOUIPMENT DATA T 26 Section III PRINCIPLES OF III III Ie eme he EE EEE EEE EEE eire ire re ese re rere reste etre 32 1 5 GENERAL peocters ceckezee ve eee dedu E ORE GNE ec sane OEA EE ERR EN ORE RE ER M erred 32 1 6 PRINCIPLES OF OPERATION erennere bp rtu etre Gide Pa yids rake e E 32 e 34 END USER MAINTENANCE INSTRUCTIONS 7 9 9 9 9 34 Section I REPAIR PARTS AND SUPPORT EQUIPMENT HM HH HH e he hene enne ee nens 34 2 1 COMMON TOOLS AND EQUIPMENT RE 34 2 2 SPECIAL TOOLS AND SUPPORT BOUIPMENT bone 34 Section II SERVICE UPON RECLHEIDT2. o Figure 2 2 PWS 1 MODI USER MANUAL VER 2015 01 2 6 3 PMCS ITEM INTERVAL ITEMS BE CHECKED PROCEDURE NOT FULLY MISSION NO OR SERVICED CAPABLE IF 1 Quarterly Charging Handle Assembly MKIS select fire Models Only and Selector Lever cont Place selector lever Fig 2 2 1 in AUTO position Hammer does not fall charge the weapon and squeeze the trigger Hammer should fall Hold trigger to rear charge the weapon and release Hammer falls the trigger Squeeze the trigger Hammer should not fall NOTE Automatic sear should have released hammer while holding trigger in the squeezed position before releasing and re squeezing the trigger ALL WEAPONS Moderate finger thumb pressure With hammer in forward position using moderate moves selector lever to SAFE finger thumb pressure attempt to place the selector position lever Fig 2 2 1 in SAFE position 2 Quarterly Upper Receiver and Barrel Inspect handguard assembly Fig 2 3 1 for cracks Rails are missing or unserviceable Assembly Handguard and or other damage Dings and dents are acceptable Assemblies in rails providing they do not prohibit attaching accessories to the Picatinny rails or KeyMod slots 40 PWS MODI USER MANUAL 2 6 4 PMCS VER 2015 01 ITEM INTERVAL ITEMS TO BE CHECKED PROCEDURE NOT FULLY MISSION NO OR SERVICED CAPABLE IF 2 Quarterly Upper Receiver and Barrel Release takedown pin
3. bee Dee idi Sout RP ELEM ORE E 66 2 14 UPPER RECEIVER AND BARREL ASSEMBLY erae ertt eroe enin ed dens ur 74 2 15 LOWER RECEIVER AND BUTTSTOCK ASSEMBLY eerte eene tne thee tain eee seen ne dens TT 2 16 MAJOR COMPONENTS OF THE MKI SERIES 80 APPENDIX 84 CLEARING PROCEDURE E peto co x ise e n Pret stg 85 CLEANING anneau E onan Pa IS oO ERN en 86 PWS 1 MODI USER MANUAL VER 2015 01 SAFETY IS YOUR NUMBER ONE RESPONSIBILITY Regardless of where you are the first concern of every firearm owner should be safety Apply the following safety rules in every situation and with any kind of firearm If you feel uncertain about any operational aspects of your firearm please contact Primary Weapons Systems Inc PWS customer service at 208 780 6122 before proceeding with its operation SAFETY WARNINGS YOU MUST FOLLOW ALL SAFETY RULES TO ENSURE THE SAFE USE OF YOUR FIREARM FAILURE TO FOLLOW THE INSTRUCTIONS AND WARNINGS IN THIS MANUAL COULD CAUSE SERIOUS PERSONAL INJURY OR DEATH TO YOU OR OTHERS AND DAMAGE TO PROPERTY As a gun owner you accept a demanding responsibility How seriously you take this responsibility can be the difference b
4. eret rhet mtt teh phat he Hy oL san pend REIR RU Fade bias 35 2 3 GENBR AT itecto ve deae EO Wei visi ERE Yd ees ds 35 2 4 SERVICE UPON RECEIPT OF 3 5 634 tite tian erbe ye pe po edant 35 Section III PREVENTATIVE MAINTENANCE CHECKS AND SERVICES PMCS 0c cece eee HH 37 2S GENERAD e DENEN 37 2 6 PREVENTATIVE MAINTENCE CHECKS 5 1 e ne ene etse sees sees eas 37 Section IV TROUBLESHOOTING eer eren ee dec be gie dece e o edt blows pu Le eu E 47 GENERA RENT UT IT TEE ETE 47 2 38 TROUBLESHOOTING ocu nad iade Pares ead fur ont pao 47 GAS ADJUSTMENT SETTINGS YR EROR ER 49 T FAILURE OF MAGAZINE TO LOCK IN RIFLE rrr nr PEOR eH a e e roux ERR NES 51 PWS 1 MODI USER MANUAL VER 2015 01 2 TOSXREED tene ENEMIES EE 51 3 FAILURE TO CHAMBER ETE 52 4 Y WIES ISNLONEGSGU dc 52 PWS ENHANCED BUFFER TUBE INSTALLATION INSTRUCTIONS eI Hee 54 5 FAILURE FIRE e misno rr ho Ree ec 57 6 FAILURE UNLOCK Que IL 58
5. environmental or operational conditions the interval may be increased to ensure proper operation Reapply lubricant to the operating parts as necessary NO LUBE Figure 2 18 63 PWS 1 MODI USER MANUAL VER 2015 01 2 11 MAJOR COMPONENTS OF MK1 MODI RIFLES DISASSEMBLY This task covers disassembly INITIAL SETUP Equipment conditions MODI rifle assembled General Safety Instructions Before starting an inspection clear the weapon Do not keep live ammunition near your work area To avoid injury to eyes safety glasses should be worn at all times Below armorer level maintenance do not interchange bolt assemblies from one weapon to another A DISASSEMBLY Remove Magazine Fig 2 19 1 bolt carrier charging handle assembly 2 and upper receiver and barrel assembly 3 from lower receiver and buttstock assembly 4 B 64 PWS MODI USER MANUAL VER 2015 01 11 1 MAJOR COMPONENTS OF 1 MODI 2 a N o E 2 on RIFLES PWS 1 MODI USER MANUAL VER 2015 01 2 12 BOLT CARRIER GROUP BCG This task covers A Disassembly B Cleaning C Inspection Repair INITIAL SETUP Tools No tools necessary Equipment Conditions BCG removed General Safety Instructions D Lubrication E Reassembly Bolt cam pin must be installed prior to firing to prevent injury or death to personnel Do not interchange bolt assemblies from one weapon to another If changing out
6. 223 Wylde without magazine MK112 223 Wylde without magazine 114 223 Wylde without magazine 116 223 Wylde amp 7 62x39 without magazine MK116 300 BLK without magazine MK118 223 Wylde without magazine OVERALL LENGTH MK 107 with compensator buttstock closed all calibers 109 with compensator buttstock closed MK110 with compensator buttstock closed 112 with compensator buttstock closed 114 with compensator buttstock closed 116 with compensator buttstock closed all calibers MK118 with compensator buttstock closed 26 US CUSTOMARY 5 lbs 13 oz 6 lbs 1 oz 6 lbs 3 oz 6 155 6 oz 6 lbs 9 oz 6 lbs 13 oz 6 Ibs 10 oz 7 lbs 2 oz 24 5 in 25 6 in 27 5 in 29 5 in 31 4 in 33 0 in 34 9 in METRIC 2 34 kg 2 75 kg 2 79 kg 2 91 kg 2 96 kg 3 01 kg 2 91 kg 3 15 kg 62 2 cm 65 0 cm 69 9 cm 74 9 cm 79 7 cm 83 8 cm 88 6 cm 1 4 1 EQUIPMENT DATA BARREL LENGTH 107 all calibers MK109 MK110 MK112 MK114 116 all calibers 118 MECHANICAL FEATURES Rifling Method of Operation Type of Breaching Mechanism Method of Feeding Cooling Trigger pull PWS MODI USER MANUAL VER 2015 01 US CUSTOMARY METRIC 7 75 in 19 7 cm 9 75 in 24 8 cm 10 75 in 27 3 cm 12 75 in 32 4 cm 14 5 in 36 8 cm 16in 40 6 cm 18in 45 7 cm Right hand twist 6 groove 1 turn in 8 inches 20 32 cm Gas piston Rotating bolt Magazine Ai
7. Contact PWS Customer Service Contact PWS Customer Service Refer to page 60 Clean chamber with copper cleaner or honing tool Contact PWS Customer Service Refer to page 60 Contact PWS Customer Service Disassemble and Clean Refer to page 60 Contact PWS Customer Service Refer to page 60 PWS MODI USER MANUAL 2 8 8 TROUBLESHOOTING VER 2015 01 PWS 1 MODI USER MANUAL VER 2015 01 2 8 9 TROUBLESHOOTING MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 10 SHORT RECOIL SHORT STROKING 1 Broken or damaged action spring Replace action spring Un lubricated or dirty action spring and or receiver extension buffer tube Clean and lubricate 2 3 Improper buffer weight buffer is too heavy Replace buffer with standard carbine buffer 4 Buffer tube is out of alignment applicable only to weapons using the Relive tension and readjust buffer tube by PWS EBT unscrewing bottom screw Fig 2 15 2 Space between buffer tube Fig 2 15 1 and tension plate should be Refer to page 48 for installation instructions parallel Excessive carbon build up in piston tube Clean piston tube using T handle and 40 caliber brush Out of spec ammunition Replace ammunition 11 RIFLE CANNOT BE ZEROED 1 Misalignment of handguard Fig 2 17 3 Contact PWS Customer Service or replace barrel 12 FIRES TWO ROUNDS WITH ONE PULL OF THE TRIGGER WITH SELECTOR ON SEMI DOUBLE FIRING 1 Perform function test refer to page 81 I
8. Sustained Rate of Fire 12 15 rds min Maximum Range Point Target 328 yds 300m Maximum Range Area Target 437 yds 400m 29 PWS 1 MODI USER MANUAL VER 2015 01 MAXIMUM RATE OF FIRE 30 MK112 223 Wylde Semiautomatic Burst Sustained Rate of Fire Maximum Range Point Target Maximum Range Area Target MK114 223 Wylde Semiautomatic Burst Sustained Rate of Fire Maximum Range Point Target Maximum Range Area Target MK116 223 Wylde Semiautomatic Burst Sustained Rate of Fire Maximum Range Point Target Maximum Range Area Target 1 4 4 EQUIPMENT DATA US CUSTOMARY METRIC 45 rds min 90 rds min 12 15 rds min 437 yds 547 yds 45 rds min 90 rds min 12 15 rds min 547 yds 656 yds 45 rds min 90 rds min 12 15 rds min 547 yds 656 yds 400 m 500m 500m 600 m 500 600 PWS 1 MODI USER MANUAL 1 4 5 EQUIPMENT DATA VER 2015 01 US CUSTOMARY METRIC MAXIMUM RATE OF FIRE MK116 300 BLK Semiautomatic 45 rds min Burst 90 rds min Sustained Rate of Fire 12 15 rds min Maximum Range Point Target 460 yds 420m Maximum Range Area Target 550 yds 500 m MK116 7 62x39 Semiautomatic 45 rds min Burst 90 rds min Sustained Rate of Fire 12 15 rds min Maximum Range Point Target 350 yds 320m Maximum Range Area Target 450 yds 410m MK118 223 Wylde Semiautomatic 45 rds min Burst 90 rds min Sustained Rate of Fire 12 15 rds min Maximum Range Point Target 656 yds 600
9. 7 FAILURE TO EXTRACT eterno ter tot EROS nevus PATERE eaves 58 S FAILURE MEOS Gu UE 58 9 FAILURE TO COCK te e eret ere ta dedi d sordo ke er da de Ned Cr Rea hiss Re e ERR ETE esu ESEE 58 IO SHORT RECOIL SHORT SEIROKING re re 60 11 RIELE CANNOT BE ZEROED merit ere epos ke say aS Uode ges Hades 60 12 FIRES TWO ROUNDS WITH ONE PULL OF THE TRIGGER WITH SELECTOR ON SEMI DOUBLE FIRING EE 60 13 FIRES WITH SELECTOR LEVER ON SAFE OR WHEN TRIGGER IS RELEASED WITH SELECTOR ON js E 60 14 BOLT ASSEMBLY FAILS TO LOCK TO REAR AFTER FIRING LAST 61 15 FAILURE TO CYCLE WITH SELECTOR LEVER ON AUTO SELECT FIRE 61 Section V MAINTENANCE PROCEDUREDGS rer rhet eer e Eger Bora Rer ar eee Eos Fe Fee 62 2 0 INIEIAL SETUP Ot ojus n debes 62 2 T0 LUBRICATION GENERAL ADOPEN ANETO osos otio ye 62 2 11 MAJOR COMPONENTS OF THE MKI SERIES HH eee nennen ne nennen enn 64 PWS MODI USER MANUAL VER 2015 01 2 12 BOLT CARRIER GROUP BCG 5 ertet esee ba Sere ipa Eger chu
10. MK116 109 116 RIFLE 223 Wylde MK110 RIFLE 300 BLK MK116 MII6RBIB RIFLE 223 Wylde MK112 UPPER 7 62x39 MK116 M112RA1B M116UFOB RIFLE 300 BLK MK112 RIFLE 223 Wylde MK118 M112RB1B M118RA1B Current as of January 2015 CONTENT ADOPTED FROM US ARMY TM 9 1005 319 23 amp P PWS MODI USER MANUAL VER 2015 01 CONTACT INFORMATION If any further information or assistance is needed always contact the PWS customer service support team E mail customerservice primaryweapons com Phone 208 780 6122 Fax 208 297 2675 WARRANTY PWS has a designated warranty department If you are having any issues with any of our products you believe your issue to be caused by damage during shipping or that it was caused by fault on our part eg missing parts please report the damage immediately by filling out a Warranty RMA Ticket online at www primaryweapons com WARRANTY INFORMATION components manufactured by Primary Weapons Systems Inc PWS are warranted by the manufacturer for 24 months from the date of delivery to its customer against defects that may have occurred in the manufacturing process during assembly or during proofing of the product The manufacturer also guarantees the product functions to factory specifications and meets the quality standards as set by Primary Weapons Systems Inc and will warranty any product that fails to maintain those specificati
11. Repair Parts and Support Equipment Section II Service Upon Receipt Section Preventive Maintenance Checks and Services PMCS Section IV Troubleshooting Section V Maintenance Procedures Section I REPAIR PARTS AND SUPPORT EQUIPMENT 2 1 COMMON TOOLS AND EQUIPMENT tools needed for end user maintenance will be supplied with purchase of rifle If any further assistance is needed always contact PWS customer service support team at customerserviceWprimaryweapons com or call 208 780 6122 2 2 SPECIAL TOOLS AND SUPPORT EQUIPMENT There are no special tools required for end user maintenance 34 PWS MODI USER MANUAL VER 2015 01 Section II SERVICE UPON RECEIPT 2 3 GENERAL 1 Inspect the rifle for any damage incurred during shipment If rifle has been damaged report the damage immediately to PWS Customer Service Email customerservice primaryweapons com or call 208 780 6122 Or proceed to www primaryweapons com and fill out a Warranty RMA Ticket online 2 Check the rifle and corresponding serial numbers against the packing slip to see if shipment is complete 2 4 SERVICE UPON RECEIPT OF MATERIAL WARNING Before starting an inspection be sure to clear the rifle Do not actuate the trigger before clearing the rifle Inspect the chamber to make sure it is empty and free of obstructions Check to see there are no obstructions in the barrel and no ammunition is in position to be chambered 35 PWS 1 MODI US
12. charging handle 5 Reassemble BCG Fig C 3 into upper 1 Reassemble upper 1 and lower 2 receivers Function check rifle according to manual see page 82 NOTE The KeyMod handguard should not be removed as a part of routine maintenance You should only remove the KeyMod handguard to repair or to replace the rail or related components 2015 01 PWS MODI USER MANUAL PWS 1 MODI USER MANUAL VER 2015 01 16 service the Gas Adjustment Knob GAK a Turn to the X setting Fig D using the provided tool located in the grip of your firearm b Take two sections of the cleaning rod set and thread it onto the GAK tool Then thread the tool onto the end of the GAK This will help you remove the knob from the gas block with the rail installed DO NOT remove the spring Fig E 4 and detent 3 from GAK d Use the gas block adjustment tool Fig D 1 to move the knob forward for easier removal Then thread the tool on to the end of the gas block adjustment knob 6 and pull e Wipe down gas block adjustment knob with Gun Ease wipes Also use the tooth brush and wipes to clean out piston tube and the knob its self f Reinstall into piston tube Make sure that it is seated fully against the gas block Fig E 2 Figure D PWS MODI USER MANUAL VER 2015 01 91
13. gas block allows the user to adjust for standard ammo military ammo and two suppressed settings The X setting is for removal of the knob for annual maintenance only Gas adjustment setting explanations are for 223 5 56 and 308 7 62x51 use Users of 300blk or 7 62x39 caliber should leave the adjustment on Position 1 for all use unless in a rare instance carrier speed induced malfunctions occur and the advancement to Position 2 is required Users of 300blk typically do not require ANY adjustment of the Gas Settings from Position 1 suppressed or unsuppressed Position 1 marked by a single large circle is for normal operation and can be used with standard ammunition or in many cases military ammunition Position 2 marked by two circles is for use with higher pressure loads such as military ammunition Position 3 marked with three circles is for el REJ suppressed use when running standard ammunition C Position 4 marked by four circles is for suppressed use when running higher pressure loads such as military ammunition The X setting is used to remove the gas plug for SONNING MANG YOUR WEAPON WENA CES annual maintenance ONLY ON THE X SETTING WILL CAUSE DAMAGE AND Temm OR LOSS YOUR GAS ADJUSTMENT KNOB 49 PWS 1 MODI USER MANUAL VER 2015 01 ADJUSTING YOUR GAS BLOCK The gas adjustment knob can be changed with a tool located in the grip of your weapon This tool 15 also able
14. located at the front of the charging handle 7 6 Install piston head 8 by sliding it onto operating rod 70 2 13 BOLT ASSEMBLY This task covers A Disassembly D Lubrication B Cleaning E Reassembly C Inspection Repair INITIAL SETUP Tools No tools necessary Equipment Conditions Bolt assembly removed from BCG General Safety Instructions PWS MODI USER MANUAL VER 2015 01 Do not interchange bolt assemblies without checking proper headspace with approved gauges To avoid injury to your eyes use care when removing and installing spring loaded parts A DISASSEMBLY NOTE Do not separate extractor and extractor spring assembly unless replacement of either or both is required Do not remove the rubber insert from the extractor spring assembly 71 PWS 1 MODI USER MANUAL VER 2015 01 2 13 1 BOLT ASSEMBLY 1 Push out extractor pin Fig 2 22 5 and remove extractor 3 and extractor spring assembly 4 as a unit 2 Ifrequired twist extractor spring assembly 4 counterclockwise to remove from extractor 3 CAUTION Be sure to use vise jaw protective caps Figure 2 22 72 PWS MODI USER MANUAL 2 13 2 BOLT ASSEMBLY VER 2015 01 B CLEANING CAUTION Do not distort extractor spring assembly during cleaning Clean major contact points and lugs Fig 2 22 8 9 of carbon deposits Extractor 3 and spring assembly 4 do not need to be removed for routine cleaning and maintenanc
15. receive quarterly PMCS unless inspection reveals more frequent servicing 1s necessary Normal cleaning PMCS of an inactive weapon will be performed every 90 days If the user finds corrosion on a weapon prior to the end ofthe 90 day period the PMCS should be performed immediately ITEM INTERVAL ITEMS BE CHECKED PROCEDURE NOT FULLY MISSION NO OR SERVICED CAPABLE IF I3 Quarterly Charging Handle Assembly Pull charging handle Fig 2 1 1 to rear Ensure Charging handle does not lock in and Selector Lever chamber is clear Let bolt carrier assembly 2 close place when in the forward position Leave hammer in cocked position Do not pull trigger Figure 2 1 PWS MODI USER MANUAL 2 6 2 PMCS VER 2015 01 ITEM INTERVAL ITEMS TO BE CHECKED PROCEDURE NOT FULLY MISSION NO OR SERVICED CAPABLE IF 1 Quarterly Charging Handle Assembly Place selector lever Fig 2 2 in SAFE position Pull Hammer falls and Selector Lever cont trigger Place selector lever in FIRE semiautomatic or Hammer does not fall SEMI select fire position Pull trigger Hold trigger to the rear charge weapon and release the trigger with a slow smooth motion without hesitation or stopping until the trigger is full forward an audible click should be heard Repeat the above FIRE semiautomatic or SEMI se The weapon malfunctions during lect fire position test five times any of these five tests l 5 lt
16. the bolt assembly checking proper headspace with approved gauges is required A DISASSEMBLY 1 Remove firing pin retaining pin Fig 2 20 1 Tilt BCG 2 and catch firing pin 3 as it drops out 66 PWS MODI USER MANUAL 2 12 1 BCG VER 2015 01 CAUTION Do not spread or close legs of firing pin retaining pin 1 2 Push bolt Fig 2 20 5 to rear and lift bolt cam pin 4 straight up to remove 3 Remove bolt 5 from BCG 2 Remove spring 6 from bolt 4 Slide charging handle 6 forward and off of the operating rod to clean or replace NOTE For disassembly of bolt assembly Fig 2 20 5 see page 71 67 PWS 1 MODI USER MANUAL VER 2015 01 2 12 2 BCG B CLEANING Clean the bolt and BCG of carbon deposits C INSPECTION REPAIR Inspect BCG Fig 2 21 5 as follows Insert bolt 5 into BCG 2 Bolt should rotate freely Inspect carrier key 6 for dents cracks or looseness If cracked or loose repair or replace as necessary Inspect firing pin retaining pin 1 and bolt cam pin 4 for cracks damage or excessive wear Replace if unserviceable Inspect firing pin 3 for damage If tip is chipped replace as necessary Inspect BCG 2 for damage or wear If unserviceable repair or replace as necessary Inspect charging handle 7 for cracks or damage Wear marks in on the charging handle is normal as long as it does not diminish the structural integrity 7 Inspect piston head 8 for cracks or da
17. 1 4 9 amp 10 can be purchased online at www primaryweapons com orszscuwwmnpRUu s 18 6646 1 04610600 8 7 BRUSH NYLON AP_____J OTISBLUENYLONA PBRUSH O BORESNAKE vimm zsvieRBORESNAKE SSCS ATTACHMENT ROD DRILL PWS CLEANING ROD ASSEMBLY DRILL 84 PWS MODI USER MANUAL VER 2015 01 CLEARING PROCEDURE Orient the muzzle in a designated SAFE DIRECTION Attempt to place selector lever on SAFE If weapon is not cocked lever cannot be placed on SAFE Remove the magazine by depressing the magazine catch button and pulling the magazine away from the receiver Lock the bolt open by pull the charging handle rearward while pressing the bottom of bolt catch Ensuring the Bolt Carrier Group is locked rearward return the charging handle to full forward position If you have not done so before place the selector lever on SAFE Visually not physically inspect the receiver and chamber to ensure these areas contain no ammunition Send the bolt forward on an empty chamber by pressing the top of the bolt catch Close the ejection port cover 85 PWS 1 MODI USER MANUAL VER 2015 01 CLEANING 1 Separate upper Fig A 1 and lower 2 receivers 2 Useclean rag and Gun Ease or Gun Ease wipes to wipe down exterior of rifle and clean BCG and interior components 3 Also wipe down complete lower wi
18. 9 1 2 Short recoil 3 Dirty or obstructed chamber 4 FAILURE TO LOCK 1 Weak or broken action spring Fig 2 9 1 2 Bolt cam pin Fig 2 10 1 missing 3 Loose or damaged bolt carrier key 2 Figure 2 9 Figure 2 10 Replace spring Refer to page 60 Clean chamber with mil spec chamber brush Replace spring Replace bolt cam pin Tighten and re stake carrier key or replace as necessary PWS MODI USER MANUAL 2 8 2 TROUBLESHOOTING VER 2015 01 MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 4 FAILURE LOCK cont 4 Improperly assembled extractor spring assembly Fig 2 11 Relieve tension on the bottom screw and read 5 Buffer tube is out of alignment applicable only to weapons using PWS just buffer tube by unscrewing bottom and tightening the two top screws Re tighten Space between buffer tube and tension plate Fig 2 12 1 should be the bottom screw Fig 2 12 6 parallel Figure 2 11 PWS 1 MODI USER MANUAL VER 2015 01 2 8 3 TROUBLESHOOTING PWS ENHANCED BUFFER TUBE INSTALLATION INSTRUCTIONS NOTE The PWS Enhanced Buffer Tube should be installed by a professional PWS will not refund or replace buffer tubes damaged by improper installation 1 With the receiver in the state shown 2 ensure that the rear take down pin detent pin and spring are installed in your lower receiver With the buffer tube plate over the buffer tube threads and nub facing out the m
19. CEDURE ect tb ber T epa E E te ese dees oneri 5 CONTACT INFORMATION casas duces wad stig 7 WARRANTY INFORMATION AE eed 44 44 PME EN 7 SAFETY WARNINGS inccr t etin v e e e cus i eee Pre EE e EVER TURO XR TERR CH PME 12 FIREARM USE WARNING ee eene ERR bee bes Paus UR PREX I ETOR ENE 15 USED FIREARM DISCLAIMBLR Here hor bit hades tese eoe eot ener ebd te deu studi nae PE 16 GENERAL INFORMATION prete T E 16 BARREL 16 APPEARANCE AND RECEIVER IPI 2 RAE PEE 17 MODIFICATION WARNING ret Uo de ted 17 HOW TO USE THIS MANUAL cece I I I I I ene enn nnn n n n n e NEE erer EEEn EATER EERE EEn hen eene nere nennen 18 or Rp 18 INDEX ES 19 MAINTENANCE PROGEDUR S Retreat oth ood ba Ree XAR 19 EXTERNAL VIEW OF THE MK1 SERIES 20 CHAPTER eer c
20. E MK1 MODI RIFLES REASSEMBLY This task covers A Reassembly B Inspection Function Checks C Stowage INITIAL SETUP Equipment Conditions Rifle disassembled into major components A REASSEMBLY 1 Fig 2 25 2 Slide the charging handle to the rear of the operating rod until it stops against the carrier key portion of the BCG and operating rod 2 Slide the BCG 2 into the upper receiver 3 and guide the lug portion of the charging handle into the receiver groove Push BCG 2 forward into the receiver 3 Place the upper 3 and lower receiver 4 together 4 Push take down pins in place It is easiest to do the front pin first and the rear pin second B INSPECTION amp FUNCTION CHECKS Perform the following function checks on assembled weapon 80 PWS MODI USER MANUAL VER 2015 01 N o E a PWS 1 MODI USER MANUAL VER 2015 01 B INSPECTION amp FUNCTION CHECKS Perform the following function checks on assembled weapon 82 1 Remove magazine if installed Pull charging handle assembly to rear Check that chamber is clear Release the charging handle to send the BCG forward so it 15 in the forward locked position Do not pull trigger Leave hammer in cocked position WARNING If rifle fails any of the following tests continued use of the rifle could result in injury to or death of user Place selector lever in SAFE position and pull trigger Hammer should not fa
21. ER MANUAL VER 2015 01 LOCATION ITEM ACTION REMARKS 1 Container a MK1 MODI Rifle a Remove from containers b Inspect the equipment for damage during If damage is found contact shipment Customer Service immediately c Check the equipment against the packing If discrepancy found contact list to see if the shipment is complete Customer Service immediately b Basic Issue Items Check for missing items If discrepancy is found contact Customer Service immediately 2 MK1 MODI Series a Barrel Assembly If volatile corrosion inhibitor VCI is in Rifle barrel remove and discard b AII Parts a Field strip rifle and inspect for missing damaged rusted parts b Clean and lubricate c Reassemble d Function check e Check to see whether the equipment has been modified c Magazine Check for positive retention and functioning If discrepancy is found contact of bolt catch Customer Service immediately 36 PWS MODI USER MANUAL VER 2015 01 Section III PREVENTATIVE MAINTENANCE CHECKS AND SERVICES PMCS 2 5 GENERAL This section contains the procedures and instructions necessary to perform preventive maintenance checks and services These services are to be performed by the end user with the assistance of a qualified gunsmith using genuine PWS parts where practical or by contacting PWS customer service directly at customerservice primaryweapons com or 208 780 6122 2 6 PREVENTATIVE MAINTENANCE CHECKS AND SER
22. ETUP Tools Upper Receiver Action Block Materials Parts Lubricants Figure 2 23 Equipment Conditions Upper receiver and barrel assembly removed from lower receiver 74 PWS 1 MODI USER MANUAL 2 14 1 UPPER RECEIVER AND BARREL VER 2015 01 ASSEMBLY General Safety Instructions To avoid injury to your eyes use care when removing and installing spring loaded parts A DISASSEMBLY NOTE The KeyMod rail should not be removed as a part of routine maintenance You should only remove the KeyMod rail to repair or to replace the rail or related components If not replacing any components clean in accordance with the user manual in Appendix A B CLEANING Clean all items as part of routine maintenance Lubricate the bore brush with oil and insert in into the barrel via the chamber Wipe powder residues and oil from the barrel bore and chamber with cleaning patches Clean all surfaces with a brush coated in oil to remove dirt and debris C INSPECTION 1 Inspect upper receiver Fig 2 23 1 for breaks cracks or damage to the top rail 5 that would prevent the attachment of accessories onto the Picatinny rail Replace as necessary 2 Inspect forward assist assembly 2 Ensure that the forward assist fully depresses and returns without binding Replace defective components 3 Inspect ejection port cover 3 Ensure the ejection port cover closes and latches as well as springs open when pushed open by either your fing
23. ILITY INCLUDING BUT NOT LIMITED TO THE USAGE AND SAFE STORAGE OF THE PURCHASED FIREARM GENERAL INFORMATION Your firearm is a lightweight gas piston operated air cooled magazine fed rifle produced for a high degree of accuracy reliability and durability The firearm s construction features extensive use of aircraft grade forgings CNC machined components and high quality barrels The unique design of this system has numerous benefits over the traditional direct impingement system as well as other gas piston operated AR 15 based platforms BARREL LIFE Barrel life depends on how fast the rifle is fired and how accurate the shooter insists it must be Firing the rifle as fast as the trigger can be pulled or sustained full auto fire can ruin the barrel in just a few hundred rounds Firing at controlled rates both semi auto and burst will allow your barrel to last for 5 000 to 10 000 rounds with acceptable accuracy levels As with any quality barrel a proper barrel break in will ensure your new PWS product is as accurate as possible and proper maintenance will help your product last much longer PWS recommends you clean your rifle or upper at least every 1 000 rounds PWS MODI USER MANUAL VER 2015 01 APPEARANCE AND RECEIVER FIT Your new rifle is not a custom firearm PWS requires a close fit between the receivers but normal forging and machining variations may result in play or slight side to side receiver mismatch This is not a man
24. N OR HAVE NOT READ THESE FIREARM SAFETY RULES ALWAYS USE THE CORRECT AMMUNITION FOR YOUR PARTICULAR FIREARM Never use non standard reloaded or hand loaded ammunition that has not been subjected to internal ballistic pressure testing BEWARE OF BARREL OBSTRUCTIONS Be sure the barrel is clear of obstructions before shooting Mud water snow or other objects may inadvertently lodge in the barrel bore A small obstruction can cause a dangerous increase in pressure and may damage your weapon and cause injury to yourself and others ENSURE ALL ACCESSORIES ARE COMPATIBLE Ensure that all accessories such as grips slings scopes and other accessories are compatible with the firearm and that the accessories do not interfere with safe operation It is your responsibility to understand and follow all of the instructions in this manual as well as those that may be supplied with your ammunition and any accessory NEVER DISASSEMBLE YOUR FIREARM BEYOND THE FIELD STRIPPING PROCEDURE OUTLINED IN THIS MANUAL Improper disassembly or reassembly of your firearm may be dangerous and can lead to serious injury or death PWS MODI USER MANUAL VER 2015 01 NEVER MANIPULATE ADJUST OR CHANGE ANY OF THE INTERNAL COMPONENTS OF YOUR FIREARM UNLESS SPECIFICALLY INSTRUCTED TO DO SO IN THIS MANUAL Improper manipulation of any other internal component may affect the safety and reliability of your firearm and may cause serious injury or death NEVER ALLOW ANY ALTE
25. PWS 1 MODI RIFLE SERIES USER MANUAL END USER MAINTENANCE MANUAL CHAPTER 1 INTRODUCTION CHAPTER 2 END USER MAINTENANCE INSTRUCTIONS APPENDIX A CLEANING PUBLIC FOR COMMERCIAL RELEASE PWS MODI USER MANUAL VER 2015 01 RIFLE 223 WYLDE MK107 M107RA1B UPPER 7 62x39 MK107 M107UFOB RIFLE 223 WYLDE 110 RIFLE 300 BLK 109 MIO9RBIB RIFLE 223 WYLDE MK112 M112RA1B PWS MODI USER MANUAL VER 2015 01 MK114 RIFLE 223 WYLDE MII4RA1B M116RA1B RIFLE 300 BLK MK116 MII6RBIB UPPER 7 62x39 MK116 1160 0 RIFLE 223 WYLDE MKI118 RIFLE 223 WYLDE PWS 1 MODI USER MANUAL VER 2015 01 WARNING ALL WARNINGS in this user and maintenance manual pertain to all versions of PWS rifles carbines and uppers unless otherwise specified Prior to beginning an inspection ensure the rifle is UNLOADED DO NOT pull the trigger until the rifle has been cleared Remove magazine and inspect the chamber to ensure that it is empty and that a round 1s not chambered Do not keep live ammunition near work area To avoid injury use caution when removing and installing spring loaded components The bolt cam pin must be installed or irreparable damage will occur to the weapon and injury or death of personnel may result Cleani
26. RATION OR REPLACEMENT OF PARTS IN YOUR PWS FIREARM UNLESS PERFORMED BY A QUALIFIED GUNSMITH Repairs or replacements should only be done by a qualified gunsmith using genuine PWS parts If you do otherwise improper functioning of your firearm may occur and serious injury or death and damage to property may result FIREARM USE WARNING SAFE USE OF A FIREARM IS YOUR PERSONAL RESPONSIBILITY AND THE FAILURE TO FOLLOW ALL OF THESE BASIC SAFETY RULES MAY RESULT IN SEVERE PERSONAL INJURY OR DEATH TO YOU OR OTHERS AND DAMAGE TO PROPERTY YOU ARE THE MOST IMPORTANT SAFETY DEVICE WHEN IT COMES TO THE USE OF YOUR FIREARM PRIMARY WEAPONS SYSTEMS INC WILL NOT BE RESPONSIBLE FOR ANY PERSONAL INJURY DEATH OR PROPERTY DAMAGE THAT RESULTS FROM 1 THE CRIMINAL OR NEGLIGENT USE OF THIS FIREARM 2 A DISREGARD OF THESE SAFETY INSTRUCTIONS AND WARNINGS 3 IMPROPER OR CARELESS HANDLING OF THIS FIREARM 4 THE USE OF NON STANDARD DEFECTIVE IMPROPER OR RELOADED AMMUNITION OR 5 IMPROPER OR NEGLIGENT MODIFICATIONS OR REPAIRS TO THE FIREARM 15 PWS 1 MODI USER MANUAL VER 2015 01 USED FIREARM DISCLAIMER BUYER AGREES TO HAVE ANY USED FIREARM CHECKED BY A CERTIFIED GUNSMITH PRIOR TO FIRING BUYER ASSUMES ALL LEGALITY LIABILITY AND RESPONSIBILITY FOR THE CONDITION USE AND SECURITY STORAGE OF THE PURCHASED FIREARM BUYER UNDERSTANDS THAT ALL FIREARMS ARE POTENTIALLY DANGEROUS IF HANDLED IMPROPERLY UPON PURCHASE BUYER ASSUMES ALL LIABILITY AND RESPONSIB
27. VICES PMCS WARNING Before starting an inspection be sure to clear the rifle Do not pull the trigger until the weapon has been cleared Inspect the chamber to ensure that it is empty and no ammunition is in position to be chambered Do not keep live ammunition near the work area The PMCS procedures are contained in the following table They are arranged in logical sequence requiring a minimum amount of time on the part of the persons performing them 1 Item No Column Checks and services are numbered in disassembly sequence 2 Interval Column This column gives the designated interval when each check should be performed 3 Item To Be Checked Or Serviced Column This column lists the items to be checked or serviced 4 Procedure Column This column contains a brief description of the procedure by which the check is to be performed It contains all the information required to accomplish the checks and services Information marked SH Indicates a specific equipment shortcoming and the procedure needed to correct the shortcoming 5 Not Fully Mission Capable If Column This column contains a brief statement of the condition e g malfunction shortage that would cause the covered equipment to be less than fully ready to perform its assigned mission 37 PWS 1 MODI USER MANUAL VER 2015 01 2 6 1 PMCS NOTE An inactive weapon is a weapon which has been stored for a period of 90 days or more without use Inactive weapons shall
28. ale end of the plate facing the female end of the receiver align the buffer tube with the back ofthe receiver With the fingers of one hand wrapped around the receiver holding the plate in place and ensuring the detent spring is depressed correctly not bent over one direction or another screw the buffer tube in clockwise from the rear PWS MODI USER MANUAL 2 8 4 TROUBLESHOOTING VER 2015 01 4 When lip of the buffer tube is near 5 Push the buffer retainer into the hole 6 Using a screwdriver or other wrench the buffer retainer hole insert the buffer retaining spring and buffer retainer into the hole Ensure that the buffer plate does not move out of the rear receiver hole and detent spring does not come out far enough so that the buffer tube can be rotated over the outside edge of it You may be able to get an additional revolution before the buffer tube is tight against the receiver Ensure that the buffer retainer does not fly out of the receiver when you rotate the buffer around again push the buffer retainer down far enough to that the buffer tube can rotate over the top of it PWS 1 MODI USER MANUAL VER 2015 01 2 8 5 TROUBLESHOOTING 7 The buffer tube is properly installed 8 Tighten the top two screws first using 9 Tighten the bottom screw using the when the extended portion of the buffer tube 15 on the bottom and the PWS symbol is on top Some buffer receiver combi
29. broken firing pin retain ing pin or bolt cam pin or firing pin is damaged PWS 1 MODI USER MANUAL VER 2015 01 2 6 7 PMCS 44 2 6 8 PMCS PWS MODI USER MANUAL VER 2015 01 ITEM INTERVAL ITEMS BE CHECKED PROCEDURE NOT FULLY MISSION NO OR SERVICED CAPABLE IF Quarterly Lower Receiver and Buttstock Assembly Serviceability Check Remove buffer assembly Fig 2 6 1 and action spring 2 Check buffer assembly for cracks Check action spring 2 for kinks and free length Free length should be 10 9 16 inches 26 83 cm minimum to 11 inches 27 9 cm maximum Do not attempt to adjust spring length Disengage takedown pin 14 and pull out Push back in to re engage takedown An audible click should be heard Lubricate helical compression spring and takedown pin detent 12 by placing one drop of lubricant in the channel at the rear of the takedown pin Allow the lubricant to work its way around the pin detent and spring 12 13 Check buffer tube 5 and buttstock assembly 6 for damage Buffer assembly is cracked Spring is kinked or does not meet free length requirements Components are defective or damaged Components are damaged The buffer tube or buttstock is cracked or otherwise defective 45 PWS 1 MODI USER MANUAL VER 2015 01 2 6 9 PMCS PWS MODI USER MANUAL VER 2015 01 Section IV TROUBLESHOOTING 2 7 GENERAL 1 This section contains troubleshootin
30. chet and travel in unpredictable directions with considerable velocity Do not fire randomly into the sky ALWAYS WEAR EYE AND EAR PROTECTION THAT IS SPECIFIED FOR USE WITH FIREARMS Proper protective equipment should be worn every time you handle your firearm for purposes of discharging your firearm or for cleaning and maintenance Ensure that others in the vicinity of where you are shooting also wear proper ear and eye protection NEVER USE ALCOHOL OR DRUGS BEFORE OR WHILE SHOOTING Do not use your firearm 1f you are under the influence of a substance or medication that impairs your mental or physical abilities ALWAYS HAVE ADEQUATE VENTILATION Discharging firearms in poorly ventilated areas cleaning firearms or handling ammunition may result in exposure to lead and other substances known to cause birth defects reproductive harm and other serious physical illness Review the warnings and labels for all ammunition and cleaning products carefully Wash hands thoroughly after exposure 13 PWS 1 MODI USER MANUAL VER 2015 01 BEFORE HANDLING ANY FIREARM UNDERSTAND ITS OPERATION Not all firearms are the same Familiarize yourself with the mechanical features of any firearm you intend to use If you feel uncertain about any operational aspects of your PWS firearm please contact PWS Customer Service at 208 780 6122 before proceeding with its operation NEVER ALLOW A FIREARM TO BE USED BY INDIVIDUALS WHO DO NOT UNDERSTAND ITS SAFE OPERATIO
31. e Refer to Section III 2 7 for preventative maintenance checks and services interval instructions C INSPECTION REPAIR 1 Inspect for cracks or damage especially around locking lugs Fig 2 22 8 9 Replace any components that are damaged cracked or have excessive wear 2 Inspect the extractor 3 extractor spring assembly 4 and extractor pin 5 for cracks breaks chips and other damage Pay close attention to cartridge extractor lip 10 If damaged replace D LUBRICATION A small amount of lubrication is recommended on the bearing surfaces both rear of the bolt and band that contacts the carrier of the bolt Fig 2 22 1 Over lubrication is not recommended E REASSEMBLY WARNING To avoid injury to your eyes use care when removing and installing spring loaded parts CAUTION Be sure to use vise jaw protective caps 73 PWS 1 MODI USER MANUAL VER 2015 01 2 13 3 BOLT ASSEMBLY 1 Ifremoved insert large end of extractor spring assembly Fig 2 22 4 into extractor 3 and seat by pushing and turning clockwise Position extractor 3 and extractor spring assembly 4 on bolt body 1 Compress extractor spring assembly 4 and extractor 3 to align holes Install extractor pin 5 by hand Reinstall spring 2 on rear tail portion of the bolt 1 2 14 UPPER RECEIVER AND BARREL ASSEMBLY This task covers A Disassembly D Repair B Cleaning E Lubrication C Inspection INITIAL S
32. e bolt firing pin cartridge extractor cartridge ejector firing pin retaining pin bolt return spring and bolt cam pin CHARGING HANDLE ASSEMBLY Provides a means of charging the weapon UPPER RECEIVER AND BARREL ASSEMBLY Upper receiver contains ejection port ejection port cover housing for key BCG and bolt assembly and Picatinny rail Rifle barrel assembly is air cooled and contains the trunnion gas block piston tube handguard compensator or flash hider and QD sling swivel points LOWER RECEIVER AND BUTTSTOCK ASSEMBLY Lower receiver contains the trigger assembly sear select fire only hammer assembly selector lever rifle grip bolt catch magazine catch and buttstock assembly The buttstock assembly houses the action spring buffer assembly and buffer tube receiver extension ADJUSTABLE GAS BLOCK The 4 position adjustable gas block allows the user to adjust for standard ammo position 1 high pressure ammo position 2 suppressed with standard ammo position 3 and suppressed with military ammo position 4 The X setting is for removal of the knob for annual maintenance See page 49 For normal unsuppressed use position 1 is the most recommended setting PWS MODI USER MANUAL VER 2015 01 I jo o PWS 1 MODI USER MANUAL VER 2015 01 1 4 EQUIPMENT DATA WEIGHT MK107 223 Wylde amp 7 62x39 without magazine 109 300 BLK without magazine 110
33. ect fire Gas piston operated 22 PWS MODI USER MANUAL 1 2 1 EQUIPMENT CHARACTERISTICS VER 2015 01 CAPABILITIES AND FEATURES B Capabilities Provides user an offensive and or defensive capability to engage targets with direct small arms fire C Features The series is a significant product improvement for M4 M16 type carbines and rifles Utilizing a long stroke piston system the series greatly reduces fouling in the action of the weapon making it as reliable as the AK47 it was designed after Receivers are made of T7075 Forgings to ensure safety durability and function of the rifles while keeping weight and cost at a minimum The handguard system features the VLTOR KeyMod system which comes standard with two 2 inch 1913 Picatinny rail sections as well as a continuous 1913 Picatinny top rail The operating system utilizes an operating rod attached to the bolt carrier and a floating piston head attached to the operating rod With only one moving assembly the system is simple rugged and versatile with less parts to wear and replace Chromoly steel Arcor amp salt bath treated button rifled barrels deliver unmatched accuracy and performance 23 PWS 1 MODI USER MANUAL VER 2015 01 1 3 LOCATION AND DESCRIPTION OF MAJOR COMPONENTS See Figure 1 1 1 2 24 MAGAZINE 30 round capacity BOLT CARRIER GROUP Carries bolt assembly to chamber and fires the weapon Contains th
34. ers from the inside of the receiver or from the movement of the BCG Replace defective components 13 PWS 1 MODI USER MANUAL VER 2015 01 2 14 1 UPPER RECEIVER AND BARREL ASSEMBLY 4 Check muzzle device Fig 2 23 4 for looseness on barrel A shim set or crush washer is used to properly align muzzle device Typically if a logo is present proper orientation is achieved when the logo 15 straight up at Top Dead Center If loose or out of alignment repair or replace as needed 5 Inspect top Picatinny rail of the handguard 5 for damage that would prevent the attachment of accessories onto the Picatinny rail Replace as necessary 6 Inspect the outside of the rail for damage to that would prevent the attachment of the key mod rail sections replace as necessary D REPAIR Repair or replace all unserviceable parts E LUBRICATION Lightly oil surfaces and remove any excess lubricant Do not over lubricate this can cause the action to become sticky allowing dust and debris to collect 76 PWS MODI USER MANUAL VER 2015 01 2 15 LOWER RECEIVER AND BUTTSTOCK ASSEMBLY This task covers A Disassembly D Repair B Cleaning E Lubrication C Inspection Reassembly INITIAL SETUP Tools No special tools necessary Materials Parts Lubricants Equipment Conditions Lower receiver and buttstock assembly removed A DISASSEMBLY 1 Extend buttstock assembly Fig 2 24 1 2 2 Pull down sharply on lock re
35. etween life and death There is no excuse for careless or abusive handling of your firearm Handle your firearm with extreme respect for its power and potential danger ALWAYS KEEP YOUR FIREARM POINTED IN A SAFE DIRECTION Never point a firearm at anyone or anything you do not intend to destroy whether it 15 or 15 not loaded This 15 particularly important when loading unloading or field stripping the firearm ALWAYS control the direction of the firearm NEVER stick any product made by Primary Weapons Systems in your anal cavity Rectal insertion of any of our products can cause irreparable damage to both your rectum and your high quality firearm accessory PWS MODI USER MANUAL VER 2015 01 ALWAYS TREAT EVERY FIREARM AS IF IT IS LOADED AND WILL FIRE Do not take someone s word that the firearm is unloaded always check it yourself Never pass your firearm to another person until the cylinder or action is open and you visually check that it is unloaded Keep your firearm unloaded and safely stored when not in use NEVER PLACE YOUR FINGER INSIDE THE TRIGGER GUARD OR ON THE TRIGGER UNLESS YOU INTEND TO FIRE Ensure that other objects do not touch the trigger ALWAYS BE SURE OF YOUR TARGET AND WHAT IS BEYOND IT Always be sure of where the bullet will strike and shoot only where there is a safe back stop free of obstructions water or other surfaces that can cause ricochets Be sure your bullet will stop behind your target Bullets can rico
36. f any part of function test fails replace fire control group 13 FIRES WITH SELECTOR LEVER ON SAFE OR WHEN TRIGGER IS RELEASED WITH SELECTOR ON SEMI 1 Worn broken or missing parts of fire control group Replace fire control group 60 PWS MODI USER MANUAL 2 8 10 TROUBLESHOOTING VER 2015 01 MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 14 BOLT ASSEMBLY FAILS TO LOCK TO REAR AFTER FIRING LAST ROUND 1 Magazine worn or broken Replace magazine 2 Magazine catch spring weak or broken Replace magazine 3 Broken bolt catch and or spring Replace bolt catch and or spring 15 FAILURE TO CYCLE WITH SELECTOR LEVER ON AUTO SELECT FIRE ONLY 1 Faulty selector lever Replace selector lever Figure 2 15 Figure 2 16 61 PWS 1 MODI USER MANUAL VER 2015 01 Section V MAINTENANCE PROCEDURES 2 9 INITIAL SETUP The following information will reduce the space required for the initial setup portion of the maintenance procedures l Materials Parts required are not listed unless they apply to the procedure The normal standard equipment condition references the manner in which the assembly remains from the previous step in the assembly or disassembly process Equipment condition is not listed unless some other condition is required Maintenance procedures follow a logical process in disassembly inspection and reassembly 2 10 LUBRICATION GENERAL l 2 pn 62 PWS uses and recommends the Gun Ease line o
37. f cleaning products PWS has assembled a cleaning rod set specifically for the MK1 rifles and uppers See appendix A in this manual Whenever the term cleaner lubricant preservative CLP or the words Gun Ease lubricant lube LSA or LAW are cited in this manual they can be interpreted as any commercially available product that falls within the required parameters of the particular application Substitutions can be utilized as applicable as long as they adhered to the following Do not use water based lubricants when the temperature is at or below freezing 32 F Under all but cold weather conditions CLP or other such lubricants can be used as long as they are designed to operate in the conditions in which they are being deployed Use the lubricant LAW during cold arctic conditions 10 F 12 C and below Any lubricants may be used from 10 F to 100 F 12 C to 38 C Rifle Bore Cleaner RBC may be used to remove carbon buildup in the bore and other portions of the rifle PWS MODI USER MANUAL 2 10 1 LUBRICATION VER 2015 01 NOTE Do NOT lubricate the piston head The illustration below Fig 2 18 shows the only points on the weapon that should be lubricated Additional or excess lubrication is unnecessary and can cause malfunctions by attracting dirt and debris Cleaning Lubrication Application Interval Regular cleaning and lubrication intervals should occur every 1000 rounds under normal operating conditions Under adverse
38. g information for locating and correcting most of the operating troubles which may develop in the MK1 MODI Series rifle Each malfunction for the individual part or assembly 1s followed by a list of tests or inspections which will help you to determine the corrective actions in the order listed If you have any further questions always contact PWS customer service 2 This manual cannot list all malfunctions that may occur nor all tests or inspections and corrective actions If a malfunction is not listed or is not corrected by listed corrective actions see individual repair sections in the maintenance procedures on each major assembly 2 8 TROUBLESHOOTING PROCEDURES Refer to troubleshooting table for malfunctions tests and corrective actions The symptom index page 48 15 provided for a quick reference of the malfunctions covered in the table Two special instructions sections are included to provide instruction for the gas adjustment knob and gas adjustment settings page 49 and PWS Enhanced Buffer Tube Installation Instructions page 54 47 PWS 1 MODI USER MANUAL VER 2015 01 SYMPTOM INDEX Page 1 Failure of Magazine to Lock in Rifle 51 2 Failure to Feed 3 Failure to Chamber 4 Failure to Lock 5 Failure to Fire 48 PWS MODI USER MANUAL VER 2015 01 GAS ADJUSTMENT SETTINGS Before starting any troubleshooting ensure that the gas adjustment knob is in the proper position The 4 position adjustable
39. lease lever 3 depress buttstock lever 2 and pull stock rearward and off of the buffer tube 4 3 Push the buffer retaining pin 5 down to allow the buffer 6 and buffer spring 7 to move forward Remove buffer and buffer spring 77 PWS 1 MODI USER MANUAL VER 2015 01 2 15 1 LOWER RECEIVER AND BUTTSTOCK ASSEMBLY PWS 1 MODI USER MANUAL 2 15 2 LOWER RECEIVER AND BUTTSTOCK VER 2015 01 ASSEMBLY B CLEANING Clean all items Remove all carbon deposits C INSPECTION 1 Inspect buffer assembly Fig 2 24 6 If cracked replace 2 Check free length of buffer spring 7 Free length should be 10 9 16 inches 26 83 cm minimum to 11 inches 27 9 cm maximum If not replace Do not attempt to adjust the length by stretching the buffer spring 3 Inspect lower receiver without further disassembly 4 Inspect for missing or damaged parts Inspect finish of lower receiver for shiny spots D REPAIR Upon completion of inspection repair or replace items as needed E LUBRICATION Lightly lubricate all metal components Wipe off the excess and let it air dry to a film barely visible or wet to the touch F REASSEMBLY 1 Press buffer spring Fig 2 24 7 and buffer assembly 6 into the buffer tube until buffer retaining pin engages 2 Slide buttstock 1 over buffer tube 4 Pull down on lock release lever 3 and slide stock all the way forward 79 PWS 1 MODI USER MANUAL VER 2015 01 2 16 MAJOR COMPONENTS OF TH
40. ll Place selector lever in SEMI FIRE position Pull trigger Hammer should fall MKIS SELECT FIRE MODELS ONLY Place selector lever in AUTO position Charge weapon and pull trigger Hammer should fall Hold trigger to the rear charge weapon and release trigger Pull trigger Hammer should not fall AUTO sear should have released hammer while holding trigger in the squeezed position before releasing and resqueezing the trigger With hammer in forward position attempt to place the selector lever in the SAFE position If selector lever can be placed on SAFE replace fire control group components as necessary C STOWAGE Prior to stowing weapons in arms rooms perform the following functions Gree Boe Clear refer to page 5 85 Place selector lever in SEMI FIRE position Pull trigger Hammer should fall Close ejection port dust cover Place weapon in rack PWS MODI USER MANUAL VER 2015 01 83 PWS MODI USER MANUAL VER 2015 01 APPENDIX A CLEANING The below items are what PWS recommends you use when cleaning your PWS firearm This list includes all the necessary items that you need to properly maintain your rifle PWS recommends using the Gun Ease line of CLP for all routine cleaning lubrication and maintenance Whenever the word Gun Ease is used it can be interpreted as any commercially available product that falls within the required parameters of the particular application as outlined on page 62 Items
41. m Maximum Range Area Target 765 yds 700 m 31 PWS 1 MODI USER MANUAL VER 2015 01 Section III PRINCIPLES OF OPERATION 1 5 GENERAL The 1 and MKIS series 1 Is gas piston operated and fires in either the semiautomatic MK1 or select fire 15 mode 2 Has positive locking of the bolt Firing pin is part of the bolt carrier assembly and cannot strike the primer until the bolt assembly is fully locked forward 1 6 PRINCIPLES OF OPERATION See Figure 1 2 1 MAGAZINE Holds loaded rounds ready for feeding as well as quick reload capabilities for sustained firing 2 BOLT CARRIER GROUP Provides stripping chambering locking firing extraction and ejection of cartridges using the propelling gases that exert pressure 3 MKI UPPER RECEIVER AND BARREL ASSEMBLY Provides support for the bolt carrier assembly The barrel chambers the cartridge for firing and directs the projectile 4 LOWER RECEIVER AND BUTTSTOCK ASSEMBLY Provides firing control for the rifle and carbine 5 CHARGING HANDLE ASSEMBLY Provides initial charging of the weapon The handle latch locks the charging handle assembly in the forward position during operation 32 PWS MODI USER MANUAL VER 2015 01 PWS MODI USER MANUAL VER 2015 01 CHAPTER 2 END USER MAINTENANCE INSTRUCTIONS CHAPTER OVERVIEW This chapter provides information and instructions to help keep the rifle in good repair and contains the following sections Section I
42. mage Pay close attention to the area at the rear of the piston where it is held onto the operating rod Qv uw tr D LUBRICATION A small amount of lubrication is recommended on the enlarged contact points 9 of the BCG Fig 2 21 2 as well as on bearing surfaces of the bolt 5 and the cam pin 4 Under no circumstances should you lubricate the piston head 8 Doing so can cause excessive buildup on the piston heads and in turn will cause weapon malfunctions 68 PWS MODI USER MANUAL 2 12 3 BCG VER 2015 01 PWS 1 MODI USER MANUAL VER 2015 01 2 12 4 BCG E REASSEMBLY WARNING Do not interchange bolt assemblies without checking proper headspace with approved gauges Bolt cam pin must be installed or a catastrophic failure will occur while firing the first round If the bolt cam pin is not installed injury to or death of personnel may result 1 Reinstall spring 10 on rear tail portion of the bolt Fig 2 21 5 Insert bolt back into the front of the carrier 2 2 Install bolt cam pin 4 and rotate one quarter turn 3 Hold BCG 2 with bolt assembly 5 down and drop firing pin 3 in through the rear of the carrier 2 4 Install firing pin retaining pin 1 from left side only To ensure proper installation check by holding BCG 2 with bolt assembly 5 up and attempt to shake out firing pin 5 replace piston head 8 install charging handle by sliding operating rod through the hole
43. nations will result in a space being left between the buffer plate and the buffer This 15 normal the supplied wrench The screws are tight when the wrench flexes as shown above A small amount of blue Loctite can be used but is not required supplied wrench until snug The bottom screw should be tightened approximately 4 tum after making positive contact with the plate PWS MODI USER MANUAL 2 8 6 TROUBLESHOOTING VER 2015 01 MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 5 FAILURE TO FIRE Broken or chipped firing pin Fig 2 13 1 Replace firing pin Fire control group 3 and or lower receiver assembly improperly Repair or replace assembled or damaged Broken defective or missing firing pin retaining pin 1 Replace Selector lever 4 frozen on safe position Disassemble clean reassemble or replace defective components Er Figure 2 13 PWS 1 MODI USER MANUAL VER 2015 01 2 8 7 TROUBLESHOOTING MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 6 FAILURE TO UNLOCK Burred locking lugs Fig 2 14 1 Burred lugs 2 on barrel extension Short recoil Debris or fouling in chamber FAILURE TO EXTRACT 1 Defective components in bolt assembly 2 Short recoil 8 FAILURE TO EJECT 1 Defective components in bolt assembly 2 Ejector Fig 2 14 6 stuck in bolt body 3 Short recoil 9 FAILURE TO COCK 1 Worn broken or missing parts of fire control group 2 Short recoil
44. ng solvents are flammable and toxic and should be used only in a well ventilated area The use of rubber gloves is necessary to protect the skin when cleaning rifle parts Avoid skin contact when using carbon removing compounds If carbon removing compound comes in contact with the skin wash thoroughly with running water Using gloves and protective equipment is required PWS MODI USER MANUAL VER 2015 01 CLEARING PROCEDURE Orient the muzzle in a designated SAFE DIRECTION Attempt to place selector lever on SAFE If weapon is not cocked lever cannot be placed on SAFE Remove the magazine by depressing the magazine catch button and pulling the magazine away from the receiver Lock the bolt open by pull the charging handle rearward while pressing the bottom of bolt catch Ensuring the Bolt Carrier Group BCG is locked rearward return the charging handle to full forward position If you have not done so before place the selector lever on SAFE Visually not physically inspect the receiver and chamber to ensure these areas contain no ammunition Send the bolt forward on an empty chamber by pressing the top of the bolt catch Close the ejection port cover PWS 1 MODI USER MANUAL VER 2015 01 Direct Support Maintenance Manual For RIFLE 223 Wylde MK107 RIFLE 223 Wylde MK114 107 M114RAIB UPPER 7 62x39 MK107 RIFLE 223 Wylde MK114 LE M107UFOB MIIA4RAIBLE RIFLE 223 Wylde MK109 RIFLE 223 Wylde
45. ons This warranty shall include the replacement of any broken or worn parts that would render the carbines less than 10096 safe and operable The warranty shall extend to weapons with damage as a result of normal operational wear and tear The warranty only covers defects as specified herein and does not include defects or damages related to use that exceeds the tolerances of the raw materials used in the product Nor does it cover defects or damages attributable to the installation or use of after market or non factory installed accessories beyond conventional sighting systems such as optics lasers and white lights to ensure long term reliability misuse or normal surface wear or defects or damages caused by neglect or by normal use within the scope of the intended role and application of these products These are subject to the customer following both the maintenance schedule and maintenance procedures as outlined in both the User and Armorer s Manuals for these components and products And that the customer follows the intended use guidelines as specified by the appropriate manual or instruction card The warranty shall not extend to weapons damaged beyond repair through abuse caused by catastrophic conditions such as fire and routine abuse such as accidental dropping THIS WARRANTY WILL BE VOID IF THE PRODUCT HAS BEEN ALTERED BY THE CUSTOMER OR THIRD PARTY ABUSED OR MISUSED PWS 1 MODI USER MANUAL VER 2015 01 TABLE OF CONTENTS CLEARING PRO
46. preventive maintenance checks and services 2 Section IV Troubleshooting contains troubleshooting information for locating and correcting most of the operating troubles which may develop in the MK1 Series rifle 3 Section V Maintenance Procedures contains information necessary to properly assemble disassemble and care for your firearm 19 PWS 1 MODI USER MANUAL VER 2015 01 EXTERNAL VIEW OF THE SERIES RIFLE RIGHT SIDE GAS BLOCK ADJUSTMENT KNOB FORWARD ASSIST ASSEMBLY BARREL MAGAZINE RIFLE GRIP 20 PWS MODI USER MANUAL VER 2015 01 LEFT SIDE CHARGING HANDLE BOLT CATCH COS MD 8 ____ HAND GUARD COMPENSATOR LOCK RELEASE LEVER 21 PWS 1 MODI USER MANUAL VER 2015 01 CHAPTER 1 INTRODUCTION CHAPTER OVERVIEW This chapter contains general information equipment description and data and principles of operation for the MK1 MODI series rifle Section I GENERAL INFORMATION 1 1 SCOPE 1 of Manual End Use and Maintenance 2 Model Number and Equipment name MK107 MK109 MK110 MK112 MK114 MK116 and MK118 rifles 3 Purpose of Equipment Provides user an offensive defensive capability with small arms fire Section II EQUIPMENT DESCRIPTION AND DATA 1 2 EQUIPMENT CHARACTERISTICS CAPABILITIES AND FEATURES A Characteristics a Light weight d Magazine fed b Air cooled e Semiautomatic or sel
47. r cooled 5 5 7 5 6 2 5 34kg 27 PWS 1 MODI USER MANUAL VER 2015 01 1 4 2 EQUIPMENT DATA US CUSTOMARY METRIC FIRING CHARACTERISTICS MK107 223 Wylde muzzle velocity 2368 ft sec 721 8 m sec MK107 7 62x39 muzzle velocity 1960 ft sec 597 0 m sec MK109 300 BLK without magazine 2130 ft sec 649 0 m sec MK110 223 Wylde without magazine 2654 ft sec 808 9 m sec MK112 223 Wylde without magazine 2833 ft sec 863 2 m sec MK114 223 Wylde without magazine 2915 ft sec 888 5 m sec MK116 223 Wylde without magazine 2993 ft sec 912 3 m sec MK116 300 BLK without magazine 2444 ft sec 744 9 m sec MK116 7 62x39 muzzle velocity 2356 ft sec 718 1 m sec MK118 223 Wylde muzzle velocity 3049 ft sec 929 3 m sec MAXIMUM RATE OF FIRE MK107 223 Wylde Semiautomatic 45 rds min Burst 90 rds min Sustained Rate of Fire 12 15 rds min Maximum Range Point Target 218 yds 200m Maximum Range Area Target 328 yds 300m 28 PWS MODI USER MANUAL 1 4 3 EQUIPMENT DATA VER 2015 01 US CUSTOMARY METRIC MAXIMUM RATE OF FIRE MK107 7 62x39 Semiautomatic 45 rds min Burst 90 rds min Sustained Rate of Fire 12 15 rds min Maximum Range Point Target 200 yds 180m Maximum Range Area Target 300 yds 270m MK109 300 BLK Semiautomatic 45 rds min Burst 90 rds min Sustained Rate of Fire 12 15 rds min Maximum Range Point Target 440 yds 400m Maximum Range Area Target 540 yds 490m MK110 223 Wylde Semiautomatic 45 rds min Burst 90 rds min
48. rence to maintenance procedures is to the page where the respective initial setup appears 2 Illustrations for the maintenance procedures show only those parts affected by the operation being performed 3 When procedure is common to series rifles ONLY the MK112 configuration will be depicted If a selected procedure is not common to all models of the 1 series separate procedures will be illustrated 4 When the word rifle is referenced in text it will reference the rifle and the carbines PWS MODI USER MANUAL VER 2015 01 INDEXES This manual is organized to help you find the information you need quickly There are several useful indexes 1 Table of Contents lists all chapters sections and appendices along with the referenced pages 2 Chapter Overviews Summarizes material covered in the chapter at the beginning of each chapter 3 Symptom Index lists in alphabetical order parts of the rifle with possible malfunctions Located just before the troubleshooting table in each maintenance chapter MAINTENANCE SECTIONS There are three maintenance sections Section III Preventive Maintenance Checks and Services PMCS Section IV Troubleshooting and Section V Maintenance Procedures Each maintenance section provides a comprehensive list of instructions necessary to perform maintenance services on your firearm 1 Section III PMCS page 37 contains the procedures and instructions necessary to perform
49. s to open and separate upper Muzzle device ore barrel is loose Assembly Handguard and lower receiver Hand check the muzzle device Assemblies cont Fig 2 3 2 for looseness on the barrel Hand check barrel 3 for looseness on the upper receiver 4 3 Quarterly Upper Receiver and Barrel Check charging handle Fig 2 3 5 and ejection port Charging handle Fig 2 3 5 is Assembly Serviceability cover 6 for defects and proper function defective Check Inspect upper receiver 4 finish for scratches or worn shiny spots If shiny or worn spots are visible repair in accordance with unit SOP Figure 2 3 PWS 1 MODI USER MANUAL VER 2015 01 2 6 5 PMCS ITEM INTERVAL ITEMS BE CHECKED PROCEDURE NOT FULLY MISSION NO OR SERVICED CAPABLE IF 3 Quarterly Upper Receiver and Barrel With one hand position the complete upper Fig Assembly Serviceability 2 3 1 4 so that the muzzle 2 is pointing down at Check cont approximately a 40 degree angle Pull the charging handle 5 rearward Holding the bolt carrier group BCG to the rear push the charging handle 5 for ward Release the BCG BCG should close and lock under its own weight If Cleaning and lubrication does not it does not remove the bolt assembly Fig 2 4 2 correct malfunction from the bolt carrier 4 and slide the bolt carrier and charging handle 3 back into the receiver If carrier 4 seems to drag in the receiver clean and lube as nece
50. ssary Figure 2 4 2 6 6 PMCS PWS MODI USER MANUAL VER 2015 01 18 INTERVAL ITEMS TO BE CHECKED PROCEDURE NOT FULLY MISSION OR SERVICED CAPABLE IF Quarterly Serviceability Check Quarterly Bolt Assembly and BCG Serviceability Check Key and Bolt Carrier Group BCG and Bolt Assembly Remove BCG Fig 2 4 4 and disassemble Visually inspect bolt assembly 2 for cracks especially in the area of the bolt cam pin hole Check bolt face 6 for cracks on locking lugs 5 for a cluster of pits or chipped bolt face 6 and for an elongated firing pin hole 7 If cracked or broken contact PWS Customer Service Insert the bolt assembly 2 into the key and BCG 4 so the bolt assembly points down The bolt assembly should move and slide freely in the BCG Inspect bolt cam pin 9 for damage or excessive wear Ensure firing pin retaining pin 8 is structurally sound Check extractor Fig 2 5 1 extractor spring assembly 2 ejector 3 and ejector spring 4 for dirt and serviceability If dirty clean lubricate and reassemble If unserviceable replace as necessary Check BCG 5 and carrier key for excess wear cracks or other damage Ensure carrier key screws 8 are tight and staked Check firing pin 9 for pits or breaks If damaged replace firing pin Defects are found Missing or broken firing pin retain ing pin or bolt cam pin Parts are missing or unserviceable Missing or
51. th clean rag and Gun Ease or Gun Ease wipes and brush Include the buffer tube and trigger mechanism 4 Lightly lubricate all metal components Wipe off the excess and let it air dry to a film barely visible or wet to the touch 86 PWS MODI USER MANUAL VER 2015 01 Remove BCG from upper Disassembled bolt carrier group Fig B Remove charging handle 5 Remove firing pin retaining pin 6 Remove firing pin 7 Remove cam pin 8 Remove bolt 9 and spring Wipe down BCG and minor components with a clean rag and Gun Ease Lubrication is recommended on the enlarged contact points of the BCG 3 as well as on bearing surfaces both rear of the bolt and band that contacts the carrier of the bolt 9 and cam pin 8 Figure 87 PWS MODI USER MANUAL VER 2015 01 88 10 11 12 13 14 15 Use cleaning rod with chamber brush to apply a light amount of oil and clean chamber Lubricate bore brush with oil and insert into the barrel via the chamber Wipe powder residues and oil from the barrel bore and chamber with cleaning patches Clean all surfaces with a brush coated in oil to remove dirt and debris Use BoreSnake to clean barrel pulling from chamber to muzzle Reassemble bolt carrier group Fig B Reassemble bolt spring 10 and bolt 9 into carrier 3 Reassemble cam pin 8 Reassemble firing pin 7 Reassemble firing pin retaining pin 6 Reassemble
52. to change your sights Use this tool to rotate the gas adjustment knob through its five settings Fig 2 7 The gas adjustment plug contains a detent and spring to lock it in place When you move it to the X setting the knob will move out toward the end of the barrel Do not force it to the next setting Doing so may result in damage to your gas adjustment knob or gas block Using the gas block adjustment tool located in the grip of your weapon push the gas adjustment knob back toward the gas block and the knob will turn freely to the next setting Figure 2 7 50 TROUBLESHOOTING PROCEDURES PWS MODI USER MANUAL VER 2015 01 MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 1 FAILURE OF MAGAZINE TO LOCK IN RIFLE l 2 3 4 2 FAILURE TO FEED Figure 2 8 Dirty or corroded magazine catch Fig 2 8 1 Defective magazine catch spring 2 Worn or broken magazine catch 1 Worn or defective magazine Magazine catch spring weak or broken Magazine catch Fig 2 8 1 defective Magazine catch 1 out of adjustment will not retain magazine 1 Short recoil Disassemble and clean Replace spring Replace magazine catch Replace magazine Replace spring Replace magazine catch Adjust magazine catch Refer to page 60 PWS 1 MODI USER MANUAL VER 2015 01 2 8 1 TROUBLESHOOTING MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 3 FAILURE TO CHAMBER 1 Weak or broken action spring Fig 2
53. ufacturing defect and has no adverse effect on accuracy or the weapon s function All PWS rifles and uppers are test fired before leaving our facility New rifles will normally show evidence of this firing If the receiver looks light or uneven in color it is most likely dry and a light coat of oil on the metallic surfaces will improve its appearance The upper and lower receivers are made from forgings because forgings provide superior strength over billet machining processes By the very nature of a forging small dents and dings on the outside of the receiver may be visible No forging is free of them This is not a defect MODIFICATION WARNING YOUR PWS FIREARM WAS DESIGNED TO FUNCTION PROPERLY WITH ITS ORIGINAL COMPONENTS FROM THE FACTORY ALTERATIONS TO THE ORIGINAL COMPONENTS OR REPLACEMENT OF THEM WITH AFTERMARKET NON PWS MANUFACTURED COMPONENTS CAN CAUSE MALFUNCTIONS OR EVEN MAKE THE FIREARM UNSAFE DO NOT ALTER ANY PART OR ADD SUBSTITUTE PARTS NOT MANUFACTURED BY PRIMARY WEAPONS SYSTEMS INC ATTEMPTED CUSTOMIZATION OF YOUR PWS PRODUCT MAY VOID YOUR WARRANTY 17 PWS 1 MODI USER MANUAL VER 2015 01 HOW TO USE THIS MANUAL Please read this manual carefully before performing any maintenance This manual must be referred to for all inspection maintenance and repair procedures GENERAL There are several things you need to know to use this manual efficiently and effectively 1 All references in the manual are to pages only Refe
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