MK1 Mod 1 User Manual - Primary Weapons Systems
Contents
1. VER 2013 04 ITEM NO ITEMS TO BE CHECKED OR SERVICED INTERVAL PROCEDURE NOT FULLY MISSION CAPABLE IF WARNING Below certified armorer level maintenance does not interchange bolt assemblies from one rifle to another Doing so may result in injury to or death of personnel Key and bolt carrier assembly and bolt assembly serviceability check Quarterly Remove and dissemble Visually inspect bolt assembly 1 for cracks especially in the area of the bolt cam pin hole 2 Check for cracks on locking lugs 3 for a cluster of pits or chipped bolt face 4 and for an elongated firing pin hole 5 If cracked or broken contact PWS Customer Service Insert the bolt assembly 1 into the key and bolt carrier assembly 6 Turn key and bolt carrier assembly 6 so the bolt assembly 1 points down The bolt assembly should move and slide freely in the bolt carrier assembly 6 Inspect bolt cam pin 7 for damage or excessive wear Ensure firing pin retaining pin 8 is structurally sound Defects are found Missing or broken firing pin retaining pin or bolt cam pin 27 PWS MK1 MOD 1 USER MANUAL VER 2013 04 ITEM ITEMS TO BE CHECKED NOT FULLY MISSION CAPABLE NO INTERVAL OR SERVICED PROCEDURE IF 5 Quarterly Bolt assembly and Check extractor 1 extractor spring assembly Parts are missing or bolt carrier assembly serviceabi2. PWS MK1 MOD 1 USER MANUAL VER 2013 04 33 PWS MK1 MOD 1 USER MANUAL VER 2013 04 MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 3 FAILURE TO CHAMBER Step 1 Weak or broken action spring 1 Refer to item 6 in PMCS section Replace spring Step 2 Short Recoil Refer to page 38 4 FAILURE TO LOCK Step 1 Bolt cam pin 1 missing Replace bolt cam pin Step 2 Loose or damaged bolt carrier key 2 Tighten and re stake carrier key or replace as necessary Step 3 Improperly assembled extractor spring assembly 3 Assemble correctly 34 PWS MK1 MOD 1 USER MANUAL VER 2013 04 MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 4 FAILURE TO LOCK CONT Step 4 Excessive carbon build up in piston tube 4 Clean piston tube using t handle and 40 caliber brush Step 5 Buffer tube is out of alignment applicable only to weapons using the PWS EBT Space between buffer tube and tension plate 5 should be parallel Relieve tension and readjust buffer tube by unscrewing bottom screw 6 35 MALFUNCTION PWS MK1 MOD 1 USER MANUAL VER 2013 04 TEST OR INSPECTION Step 6 5 FAILURE TO FIRE Step 1 Step 2 Step 3 Step 4 CORRECTIVE ACTION Weak or broken action spring 1 Refer to item 6 in PMCS section Replace spring Broken or chipped firing pin 1 Replace firing pin Fire control group 2 and or lower receiver assembly 3 improperly assembled or damaged Repair or repl
3. cracks or damage Replace unserviceable items d LUBRICATION Lightly lubricate all items e REASSEMBLY Position helical spring 4 and charging handle latch 2 in charging handle 1 Align holes in position Install spring pin 3 using a small hammer Make sure spring pin is flush Reassemble rifle refer to page 54 T 4 oo alll 2 1 47 PWS MK1 MOD 1 USER MANUAL VER 2013 04 2 16 UPPER RECIEVER AND BARREL ASSEMBLY This task covers a Disassembly d Repair b Cleaning e Lubrication c Inspection f Reassembly INITIAL SETUP Tools Small Arms Repairman Kit Appendix A Item 5 Upper Receiver Action Block Appendix A Item 7 Materials Parts Lubricants Equipment Conditions Upper receiver and barrel assembly removed from lower receiver General Safety Instructions To avoid injury to your eyes use care when removing and installing spring loaded parts a DISASSEMBLY NOTE The key mod rail should not be removed as a part of routine maintenance You should only remove the key mod rail to repair or to replace the rail or related components If not replacing any components clean in accordance with the user manual and skip to section C item 1 1 Secure Upper Receiver Action Block 1 in a vise Remove bolt carrier group and charging handle 2 and secure upper receiver 3 to Action Block 1 using the two supplied cross pins 4 2 Using a 5 32 Allen wrench remove the 6 screws 5 fro
4. d UPPER RECEIVER AND BARREL ASSEMBLY e eeuse ss ske Rg ees oes a Ea Ese de ee be E aa Sk Ge be EEE he ske Re ee ee Se Ee aaa Gee Ge Ge Ee Re EE 16 6 EOWER RECEIMERAND BUTTSTOCKASSEMBEIY ee EE SR Ee Ge ge ead ee ged ge sed hap eh ieee ee 16 1 4 EQUIPMENT DATA ES Ee GE bee Ge Ge Ge Ee ee 17 SECTION III PRINCIPLES OF ORERATION Ee ee ee See ER EE ESE eg 20 1 5 EE EE EE OE 20 1 6 PRINCIPLES OF OPERATION Se EE Ee ge de Ge ee de den de a da n ea in a atoa diada iiaa ta i ee di 20 a MAGAZINE EE DE EEE EE a 20 b seke ls dd AAR OE OR OE OE EE OO 20 CHARGING HANDLE ev AE N EE OE OE cee cee RE EE GE OE 20 d MK1 UPPER RECEIVER AND BARREL ASSEMBLY ese see see ese ee ee ee ee ee ee ee ee ee ee Ee ee ee ee ee ee ee AE Ee ee ee Ee RA ee ee ee ee Ee ee ee ee ee 20 e LOWER RECEIVER AND BUTTSTOCK ASSEMBLY srera raria EN E EE ENE R E EE R E 20 EE E E E A EE E E EE A E E NE E EEE E EES 20 IGHAPTER EER EE E E AR A A E EE E E E E E E EE 21 END USER MAINTENANCE ss oseseosese slee sis osse ss de eed di ses ee ve node sis eel ed ede dee dr Gie ke ds dee voevcessessbecvorecsccosectscestusces 21 PWS MK1 MOD 1 USER MANUAL VER 2013 04 CHAPTERF OVERVIEW EE RR OR EO OE EO RE N 21 SECTION I REPAIR PARTS S
5. ACCESSORIES ARE COMPATIBLE Ensure that all accessories such as grips slings scopes and other accessories are compatible with the fi rearm 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 which 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 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 fi rearm and may cause serious injury or death NEVER ALLOW ANY ALTERATION 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
6. EE OE ME RE DEE REASSEMBI ie ee et oe ER Ee E EE Ee EE ee Ee Ee eN EE EE ED MAJOR COMPONENTS OF THE MK1 SERIES RIFLES ee ee ee ees se ee ee ee ge ee ee ee ee ee ee ee ee ee ge ee ee ee ee ee Ge Re ee GR Re AA ee GR Re ee Ke Re ee ee AA ee ge ee 54 da da ER EE INSPECTION GE EE RE EE RE EE EE Ee This Page Intentionally Left Blank PWS MK1 MOD 1 USER MANUAL VER 2013 04 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 at 208 344 5217 before proceeding with its operation SAFETY WARNINGS YOU MUST FOLLOW ALL OF THESE 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 and how serious you take this responsibility can be the difference between life and death There is no excuse for careless or abusive handling of your fi rearm Handle your fi rearm with intense 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
7. TO THE USE OF YOUR FIREARM AND PRIMARY WEAPONS 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 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 RESPONSIBILITY INCLUDING BUT NOT LIMITED TO THE USAGE AND SAFE STORAGE OF THE PURCHASED FIREARM 10 PWS MK1 MOD 1 USER MANUAL VER 2013 04 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 Barre
8. ee De Ge 12 MAINTENANCE dele dele ER EE ER OE EE ER EE EE 12 EXTERNAL VIEW OF THE MK1 SERIES RIFLE sasies oorde eise ei idee sedes ke ee be oe bee be ee ee oe Oe Ge ede dee ed oe Pe ee be voo de dee soes es bo See Wee be eek i Ge Dee ee 13 CHAPTER SY SEE Ge DE EE Ge eed Ee N Ge GE be ES Ge 15 INTRODUCTION EE EE EE EE EE RR EE RE 15 SECTION GENERAL INEORMATION eN ee es ee Ge 15 1 1 aal N EE AR RE ME RAAI HE EE OR ER ME EE AA EE 15 SECTION EQUIPMENT DESCRIPTION AND DATA esse see ee ee ee se se ee ee ee ee ee ee ee ee ee ee ee RE ee ee ee ee ee RE ee ee Re RE ee ee Re ER EE ee ee ee RR RE ee ee ee Re Re ee 15 1 2 EQUIPMENT CHARACTERISTICS CAPABILITIES AND se ss ee ee ee ee se se ee ee ee ee ee se ee ee ee ee ee ee se ee ee ee ee de ee bee ee ee ee ee Ee Re 15 Met AE N AE OE ES EO N ORTON EE OE 15 sae old OE EE OR ET IR EE EE EO EE EE RO AE OR OE EE 15 od ET eli NE EE OE OE RE EE EE ee 15 1 3 LOCATION AND DESCRIPTION OF MAJOR COMPONENTS ees ee ee ee ee ee se es ee ee ee ee se be ee ee ee ee ke ER GR ee ee ee Re EE Ee ee de Re GE Ee ee ee ER Ee 16 a Me vd ar EE GE RE N EE NN 16 b BOIT CARRIER DAN EE RE EE ER ER EE kno cca cha OO ES HOE EER 16 c CHARGING HANDLE ASSEMBLY hree E NA E E es N E E A eee ENNER 16
9. extractor 3 3 CAUTION Be sure to use vise jaw protective caps 3 Hold bolt body In vise and remove spring pin 5 using 1 16 inch punch and hammer 4 Remove punch be sure to catch cartridge ejector 6 and ejector spring 7 to prevent loss b CLEANING CAUTION Do not distort extractor spring assembly during cleaning Clean all Items Remove carbon deposits 45 PWS MK1 MOD 1 USER MANUAL VER 2013 04 2 14 1 BOLT ASSEMBLY CONT C INSPECTION REPAIR 1 Inspect for cracks or damage especially around locking lugs 9 Replace any components that are damaged cracked or have excessive wear 2 Inspect the extractor 3 extractor spring assembly 4 and extractor pin 2 for cracks breaks chips and other damage Pay close attention to cartridge extractor lip 10 If damaged replace 3 Inspect cartridge ejector 6 and ejector spring 7 Replace as necessary LUBRICATION A small amount of lubrication is recommended on the bearing surfaces of the bolt 1 Over lubrication is not recommended 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 2 Place bolt body 1 in a vise and start spring pin 5 in hole 3 Install ejector spring 7 and cartridge ejector 6 Align groove on cartridge ejector 6 so that spring pin 5 can be installed 3 4 Compress and hold ejector spri
10. free of obstructions Check to see there are no obstructions in the barrel and no ammunition is in position to be chambered 21 PWS MK1 MOD 1 USER MANUAL VER 2013 04 LOCATION ITEM ACTION REMARKS 1 Container a MK1 Carbine a Remove Rifle from Containers b Inspect the equipment for If damage is found contact damage during shipment Customer Service Immediately c Check the equipment against If discrepancy is found contact the packing list to see if the Customer Service Immediately shipment is complete b Basic Issue Items Check for missing items If discrepancy is found contact Customer Service Immediately 2 MK1 Series a Barrel Assembly If volatile corrosion inhibitor VCI carbine is in barrel remove and discard b All Parts c Magazine 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 Check for positive retention and functioning of bolt catch If discrepancy is found contact Customer Service Immediately 22 PWS MK1 MOD 1 USER MANUAL VER 2013 04 Section PREVENTIVE MAINTENANCE CHECKS AND SERVICES PMCS 2 6 GENERAL This section contains the procedures and instructions necessary to perform unit preventive maintenance checks and services These services are to be performed by unit maintenance personnel with the assistance of the operator w
11. minimum 3 The hand guard system features the VLTOR KeyMod System which comes standard with two 2 sections of 1913 rail as well as a continuous 1913 top rail 4 The operating system utilizes an operating rod that is attached to the bolt carrier and a floating head piston that is attached to the operating rod With only one moving assembly the system is rugged simple and versatile 4 Chromoly steel Isonite QPQ treated button rifled barrels deliver unmatched accuracy and performance 15 PWS MK1 MOD 1 USER MANUAL VER 2013 04 1 3 LOCATION AND DESCRIPTION OF MAJOR COMPONENTS a b MAGAZINE 30 round capacity BOLT CARRIER ASSEMBLY Carries bolt assembly to chamber and fires the weapon Contains the firing pin cartridge extractor bolt assembly 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 a housing for key and bolt carrier assembly and bolt assembly and Picatinny rail Carbine barrel assembly is air cooled contains the trunnion gas block quad rail compensator and QD sling swivel points LOWER RECEIVER AND BUTTSTOCK ASSEMBLY Lower receiver contains the trigger assembly sear hammer assembly selector lever rifle grip bolt catch and buttstock assembly The buttstock assembly houses the action spring buffer assemb
12. or groove and 3 8 inch 0 953 cm or less in length are allowable in the bore Uniformly fine pits in a densely pitted area of the bore are allowed Lands that appear dark due to coating of gliding metal from projectiles are allowed Striping of the lands and groves shall not be cause for rejection unless determined by use of barrel erosion gauge For pits other than mentioned above broken or burred locking lugs or surface cracks barrel should be replaced panow 49 PWS MK1 MOD 1 USER MANUAL VER 2013 04 2 16 2 UPPER RECEIVER AND BARREL ASSEMBLY CONT 6 10 11 12 Inspect bore for ringing or bulges in the barrel Bores that are ringed or sufficiently bulged are cause for rejection and the barrel should be replaced Inspect chamber for pitting Fine pits or fine pits in a densely pitted area are allowable Pits 1 8 inch 0 318 cm in length are cause for rejection and barrel should be replaced Inspect piston tube 7 for cracks deformation or gas leakage between piston tube and gas block 8 Replace as necessary Inspect gas block 8 for cracks Check seal around the barrel for evidence of gas leakage A minimal amount of leakage is acceptable as long as short recoil does not result Gas blocks found to have cracks or excessive leakage should be replaced Check muzzle device 10 for looseness on barrel A shim set 11 is used to properly align the muzzle device Typically if a logo is present proper orientation
13. tip is chipped replace as necessary Inspect bolt carrier assembly 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 NK K LS z Inspect piston head 8 for cracks or damage Pay y Erg close attention to the area at the back of the piston 5 where it is held onto the operating rod LUBRICATION A small amount of lubrication is recommended on the enlarged contact points of the bolt carrier assembly 9 as well as on bearing surfaces of the bolt 3 and the cam pin 4 Under no circumstances should you lubricate the piston heads 8 Doing so can cause excessive buildup on the piston heads and in turn will cause weapon malfunctions 43 PWS MK1 MOD 1 USER MANUAL VER 2013 04 2 13 2 BOLT CARRIER ASSEMBLY CONT e REASSEMBLY WARNING Do not interchange bolt assemblies from one rifle to another Doing so may result In Injury or death of personnel 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 6 on rear tail portion of the bolt 5 insert bolt 5 back into the front of the carrier 2 2 Install bolt cam pin 4 and rotate one quarter turn 3 Hold bolt carrier assembly 2 with bolt assembl
14. 00 m 500 m 400 m 500 m 500 m 600 m 500 m 600 m 500 m 600 m 600 m 700 m VER 2013 04 19 PWS MK1 MOD 1 USER MANUAL VER 2013 04 Section III PRINCIPLES OF OPERATION 1 5 GENERAL The MK1 and MK1S series a Is gas piston operated and fires in either the semiautomatic MK1 or select fire MK1S mode b 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 1 6 PRINCIPLES OF OPERATION a MAGAZINE Holds loaded rounds ready for feeding as well as quick reload capabilities for sustained firing b BOLT CARRIER ASSEMBLY Provides stripping chambering locking firing extraction and ejection of cartridges using the propelling gases that exert pressure on the piston and operating rod c CHARGING HANDLE ASSEMBLY Provides initial charging of the weapon The handle latch locks the charging handle assembly in the forward position during operation d MK1 UPPER RECEIVER AND BARREL ASSEMBLY Provides support for the bolt carrier assembly The barrel chambers the cartridge for firing and directs the projectile e LOWER RECEIVER AND BUTTSTOCK ASSEMBLY Provides firing control for the rifle and carbine 20 PWS MK1 MOD 1 USER MANUAL VER 2013 04 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 followin
15. 18 all calibers 18 in 45 7 cm Mechanical Features Rifling Right hand twist 6 groove 1 turn in 8 inches 20 32 cm Method of Operation Gas Piston Type of Breaching Mechanism Rotating bolt Method of Feeding Magazine Cooling Air Trigger pull 5 5 7 5lbs 2 5 3 4 kg 17 PWS MK1 MOD 1 USER MANUAL VER 2013 04 1 4 1 EQUIPMENT DATA cont Sustained Rate of Fire 12 15 rds min US CUSTOMARY METRIC Firing Characteristics MK107 5 56 Muzzle Velocity 2368 ft sec 721 8m sec MK110 223 Wylde Muzzle Velocity 2654 ft sec 808 9 m sec MK112 223 Wylde Muzzle Velocity 2833 ft sec 863 2 m sec MK112 300 BLK Muzzle Velocity 2355 ft sec 717 8 m sec MK114 223 Wylde Muzzle Velocity 2330 ft sec 710 m sec MK116 223 Wylde Muzzle Velocity 2993 ft sec 912 3 m sec MK116 300 BLK Muzzle Velocity 2444 ft sec 744 9 m sec MK118 223 Wylde Muzzle Velocity 3049 ft sec 929 3 m sec MK107 223 Wylde Muzzle Energy 772 ft lbs 518 8 m kgs MK110 223 Wylde Muzzle Energy 970 ft lbs 651 8m kgs MK112 223 Wylde Muzzle Energy 1105 ft lbs 742 5 m kgs MK112 300 BLK Muzzle Energy 1355 ft Ibs 910 5 m kgs MK114 223 Wylde Muzzle Energy 1483 ft lbs 996 m kgs MK116 223 Wylde Muzzle Energy 1233 ft lbs 828 5 m kgs MK116 300 BLK Muzzle Energy 1459 ft lbs 980 4 m kgs MK118 223 Wylde Muzzle Velocity 1280 ft lbs 860 m kgs Maximum Rate of Fire MK107 223 Wylde Semiautomatic 45 rds min Burst 90 rds min Maximum Range Point Target 218 yds 200 m Maxi
16. Bolt cam pin must be installed prior to firing to prevent injury or death to personnel Below armorer level maintenance do not interchange bolt assemblies from one weapon to another a DISASSEMBLY CAUTION Do not spread or close legs of firing pin retaining pin 1 1 Remove firing pin retaining pin 1 Tilt bolt carrier charging handle assembly 2 and catch firing pin 3 as it drops out 2 Rotate bolt cam pin 4 one quarter turn and lift straight up to remove 3 Remove bolt assembly 5 from key and bolt carrier assembly 2 Remove spring 6 from bolt 4 Remove piston head by turning piston until opening is at the 3 or 9 O clock position Move piston laterally from operating rod 5 Slide charging handle forward and off of the operating rod to clean or replace NOTE For disassembly of bolt assembly 5 see page 46 42 PWS MK1 MOD 1 USER MANUAL VER 2013 04 2 13 1 BOLT CARRIER ASSEMBLY CONT b CLEANING Clean the bolt and bolt carrier assembly in accordance with your user manual INSPECTION REPAIR 1 Inspect bolt assembly 5 as follows Insert bolt 5 into bolt carrier assembly 2 Bolt 5 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
17. E TO FEED FAILURE TO CHAMBER ES oer ge ee ee se ee Ee ee ge er ie de de ge 34 a FAILURE TO LOCK AE EE RE EE EE N ER BON OE EE Ae 34 EAILURE TO SS GE ee De Ge DER SE Ee ee ED ig 35 NS NEO died ER EE N EK EE RR N EE N FAILURE TO UNLOCK x FAILURE FTO EXTRA Haas sew eae EG EE RE N vad HOR FAILWRE TO EJECT vas caste bag OE FAILURE TO ECOCK siese SHORT RECOIL SHORT STROKING RIELEECANNOT BE ZEROED Roe ee ee GE ee ee ee a ge ee De ge ee ek FAILURE TO CYCLE WITH SELECTOR LEVER SET ON AUTO SELECT FIRE ONLY FIRES TWO ROUNDS WITH ONE PULL OF THE TRIGGER WITH SELECTOR ON SEMI DOUBLE 39 FIRES WITH SELECTOR LEVER ON SAFE OR WHEN TRIGGER IS RELEASED 15 BOLT ASSEMBLY FAILS TO LOCK TO REAR AFTER FIRING LAST ROUND 6 SECTION V MAINTENANCE PROCEDURES 2 10 INITIAL 5 2 11 LUBRICATION GENERAL 2 12 MAJOR COMPONENTS OF MK1 SERIES RIFLES ee se se se se se ee ee se se ee 2 13 5 8 DISASSEMBLY EE OE b CLEANING sis Ee GEE sateen HE GE ee Pe Ge Ee C IN Udanle dd RE EE ER EE OE OO De NEE DA HR ET ORE TE EE d EUBRICATION EE SE SE Re GE Ge
18. GE e AE EE TE Ce EEE EERO OE ER OO NOU BPBUN PRPPRPR BWNF 2 14 BOLT ASSEMBLY it tat clea stb be tetas Ee a BEd ID ARE EE EE OE EE Lae ac ea EE b CLEANINGES sees oe See eg ie ee 2 14 1 BOLT ASSEMBLY CONT C INSPECTION REPAIR ee ees sesse ee d LUBRICATION EE RO ER N EE 6 Ee av EE ee 2 15 CHARGING HANDLE ASSEMBLY NR pei Se REDE renan a DISASSEMBLY EE N N OS EE EO ead dU Seu SBE OE EE b CLEANING i ER EE EE EE EE EE EE OE d 6 8 hoops 2 17 PWS MK1 MOD 1 USER MANUAL VER 2013 04 INSPECTION REPAIR LUBRICATION REASSEMBLY e D AE A S EE INSPECTION LUBRICATION REASSEM B Y EE EE LOWER RECEIVER AND BUTTSTOCK ASSEMBLY ees ese ee ees se ee ee ee ge ee ee ee ge ee Ge Re ee GR be AA ee GR Re ee Ge Re ee AR Re AA AA ER Re ee Ke ee ee AA ee ge ee 51 DISASSEMBLY ARE EE EE RE gee EE EE EE EE EE EE INSPECTION REPAIR EE EE EE EE OE OE OE EE LUBRICATIO M ELE MO
19. NE RIFLE GRIP LEFT SIDE CHARGING HANDLE BOLT CATCH AI ESS II DES TRUNNION HAND GUARD COMPENSATOR LOCK RELEASE LEVER 13 This Page Intentionally Left Blank PWS MK1 MOD 1 USER MANUAL VER 2013 04 CHAPTER 1 INTRODUCTION CHAPTER OVERVIEW This chapter contains general information equipment description and data and principles of operation for the MK1 Series rifles Section GENERAL INFORMATION 1 1 SCOPE a Type of Manual End User Use Maintenance b Model Number and Equipment Name MK107 MK110 MK112 MK114 MK116 and MK118 Carbines c Purpose of Equipment Provides personnel an offensive defensive capability with small arms fire Section EQUIPMENT DESCRIPTION AND DATA 1 2 EQUIPMENT CHARACTERISTICS CAPABILITIES AND FEATURES a Characteristics 1 Light weight 4 Magazine fed 2 Air cooled 5 Semiautomatic or select fire 3 Gas Piston operated b Capabilities Provides personnel an offensive defensive capability to engage targets with direct small arms fire c Features 1 The MK1 series is a significant product improvement for the M4 M16 type carbines and rifles Utilizing a long stroke piston system the MK1 series greatly reduces fouling in the action of the weapon making it as reliable as the AK47 that it was designed after 2 Receivers are made of T7075 Forgings that ensure safety durability and function of the rifles while keeping weight and cost at a
20. PECIAL TOOLS ssscsssssssssssssssssssecssscssscssscssssssesssesssssssnsssssesesssnssssssssssssssssssssssesssssssssssssssens 21 AND SUPPORT EQUIPMENT EE NEE EEEE EO ENEN EENE 21 24 COMMON TOOLSAND EOUIPMEN Ti Ge ee Eed AO se Deeg LE Gaan Ge Ee SERE Re EEE ER a R A ERRA 21 2 2 SPECIAL TOOLS AND SUPPORT EQUIPMENT isisi iniaiaiai AA Ee ee ee AE Re EE ed Ge ee EE Re de be ee EE AA Ee ee EE ed Ge ee ee AA Ee ee ee ge de 21 SECTION SERVICE UPON RECEIPT SR 21 2 4 GENERAL es Bruits 21 2 5 SERVICE UPON RECEIPT OF MATERIEL ees veeg ese ese Eg ge es vi ei ene ees Se es lg eke ke gese sek Ke eed DEER seks ee dee Wee Eg ences 21 SECTION PREVENTIVE MAINTENANCE CHECKS AND SERVICES PMCS eise ese ee ese ee ee se ee ee ee eke eke ee ee ee ge ee ee Ge eke eke ee eke ee eke Ge eke Gee Re eke 23 2 6 GENERAI a Ge a ee 2 7 PREVENTIVE MAINTENANCE CHECKS AND SERVICES SECTION IV TROUBLESHOOTING sad ALIEN ET OE RT OE OE OE 2 9 TROUBLESHOOTING PROCEDURES icc os Ee Se es Gee ee ne GP ek Ge de Gee Ge DE NE GR ee es aba GER N EG ee AGE GR RE Go A aa ee Ek da GAS DE dIE ni OR 32 TROUBEESHOOTING ee Ge EG ee ED Ee Aa 33 AVFAILURE OE MAGAZINE TO LOCK AN RIFLE oe ek Ge ee se Gee Re ee es Ee ee ee eg eb oe gee 33 FAILUR
21. PWS MK1 MOD1 USER MANUAL END USER MAINTENANCE MANUAL INTRODUCTION END USER MAINTENANCE INSTRUCTIONS RIFLE 223 Wylde MK107 M107RA1B cx 223 Wylde MK110 M110RA1B RIFLE 223 Wylde MK112 RIFLE 223 Wylde MK116 M112RA1B M116RA1B RIFLE 300 BLK MK112 RIFLE 300 BLK MK116 M112RB1B M116RB1B RIFLE 223 Wylde MK114 RIFLE 223 Wylde MK118 M114RA1B M118RA1B RIFLE 223 Wylde MK114 LE Model M114RA1BLE PUBLIC FOR COMMERCIAL RELEASE This Page Intentionally Left Blank PWS MK1 MOD 1 USER MANUAL VER 2013 04 WARNING ALL WARNINGS in this technical manual pertain to all versions of the 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 the magazine and inspect the chamber to ensure that it is empty and that a round is 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 Cleaning solvents are flammable and toxic and should be used only in a well ventil
22. Stowage To avoid injury to your eyes use care when removing and installing spring loaded parts a REASSEMBLY Slide the charging handle all the way forward until it stops against the carrier key portion of the operating rod Guide the piston operating rod toward rear of the piston tube Slide the lug portion of the charging handle into the receiver groove Place the upper 3 and lower receiver 4 together Push the take down pins in place It is easiest to do the front pin first and the rear pin second b INSPECTION Perform the following function checks on assembled weapon Remove magazine if installed Pull charging handle assembly to rear Check that chamber is clear Let bolt and bolt carrier close 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 personnel Place selector lever in SAFE position and pull trigger Hammer should not fall Place selector lever in SEMI position Pull trigger Hammer should fall MK1S Select Fire Models ONLY Place selector lever in AUTO position Charge weapon and pull trigger Hammer should fall 54 PWS MK1 MOD 1 USER MANUAL VER 2013 04 5 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 resqueezi
23. ace in accordance with unit SOP Broken defective or missing firing pin retaining pin 4 Replace Selector Lever 5 frozen on safe position Disassemble clean reassemble or replace defective components 36 PWS MK1 MOD 1 USER MANUAL VER 2013 04 MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 6 FAILURE TO UNLOCK Step 1 Burred locking lugs 1 on bolt assembly Remove burrs Step 2 Burred lugs 2 on barrel extension Remove burrs Step 3 Short Recoil Refer to page 38 Step 4 Debris or fouling in chamber Clean chamber with copper cleaner or honing tool 7 FAILURE TO EXTRACT Step 1 Defective extractor 3 extractor pin 4 or extractor spring assembly 5 Replace defective components Step 2 Short Recoil Refer to page 38 8 FAILURE TO EJECT Step 1 Broken ejector 6 weak or broken ejector spring 7 or broken ejector pin 8 Replace defective components Step 2 Ejector 6 stuck in bolt body Disassemble and clean Step 3 Short Recoil Refer to page 38 37 PWS MK1 MOD 1 USER MANUAL VER 2013 04 MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 9 FAILURE TO COCK Step 1 Worn broken or missing parts of fire control group Replace defective or missing components Step 2 Short Recoil See below 10 SHORT RECOIL SHORT STROKING Step 1 Broken or damaged action spring Replace action spring Step 2 Un lubricated or dirty action spring and or receiver extension buffer tube Clean and lubric
24. assembly serviceability check separate upper and lower receiver Hand check the compensator 2 for looseness on the barrel Hand check barrel 3 for looseness on the upper receiver 4 Check charging handle 5 and ejection port cover 6 for defects and proper function loose Charging handle 5 is defective 25 PWS MK1 MOD 1 USER MANUAL VER 2013 04 ITEMS TO BE ITEM NO INTERVAL CHECKED OR PROCEDURE SERVICED i 3 Upper receiverand Inspect upper receiver 1 finish for If shiny or warn spots would barrel assembly serviceability check cont scratches or worn shiny spots If shiny or worn spots are visible repair in accordance with unit SOP With one hand position the upper 1 so that the muzzle 2 is pointing down at approximately a 40 degree angle Pull the charging handle 3 rearward Holding the bolt carrier 4 to the rear push the charging handle 3 forward Release the bolt carrier 4 Bolt carrier group should close and lock under its own weight If it does not remove the bolt assembly 5 from the bolt carrier and slide the bolt carrier and charging handle back into the receiver 1 If carrier or operating rod 6 seem to drag in the receiver clean and lube as necessary If unable to resolve contact PWS Customer Service compromise mission Cleaning and lubrication does not correct malfunction 26 PWS MK1 MOD 1 USER MANUAL
25. ate Step 3 Improper buffer weight buffer is too heavy Replace buffer with standard carbine buffer Step 4 Buffer tube is out of alignment applicable only to weapons using the PWS EBT Space between buffer tube and tension plate 1 should be parallel Relieve tension and readjust buffer tube by unscrewing bottom screw 2 Step 5 Excessive carbon build up in piston tube 3 Clean piston tube using t handle and 40 caliber brush Step 6 Out of spec ammunition Replace ammunition 38 PWS MK1 MOD 1 USER MANUAL VER 2013 04 MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 11 RIFLE CANNOT BE ZEROED Step 1 Defective barrel assembly 1 Contact PWS Customer service or replace barrel Step 2 Barrel nut is loose Remove rails and tighten barrel nut 2 and re torque to 65 70 ft lbs 12 FAILURE TO CYCLE WITH SELECTOR LEVER SET ON AUTO SELECT FIRE ONLY Step 1 Faulty selector lever Replace selector lever 13 FIRES TWO ROUNDS WITH ONE PULL OF THE TRIGGER WITH SELECTOR ON SEMI DOUBLE FIRING Step 1 Perform Function Test If any part of function test fails replace fire control group 14 FIRES WITH SELECTOR LEVER ON SAFE OR WHEN TRIGGER IS RELEASED Step 1 Worn broken or missing parts of fire control group Replace fire control group 15 BOLT ASSEMBLY FAILS TO LOCK TO REAR AFTER FIRING LAST ROUND Step 1 Magazine worn or broken Replace magazine Step 2 Magazine catch spring weak or broken Re
26. ated area The use of rubber gloves is necessary to protect the skin when washing 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 CLEARING PROCEDURE 1 Point the muzzle in a designated SAFE DIRECTION 2 Attempt to place selector lever on SAFE If weapon is not cocked lever cannot be placed on SAFE 3 Remove the magazine by depressing the magazine catch button and pulling the magazine down 4 Lock the bolt open by pull the charging handle rearward while pressing the bottom of bolt catch 5 Ensuring the bolt carrier group is locked rearward return the charging handle to full forward position 6 If you have not done so before place the selector lever on SAFE 7 Visually not physically inspect the receiver and chamber to ensure these areas contain no ammo 8 Drop the bolt closed 9 Close the ejection port cover Unit and Direct Support Maintenance Manual Including Repair Parts and Special Tools List For RIFLE 223 Wylde MK107 M107RA1B RIFLE 223 Wylde MK110 M110RA1B RIFLE 223 Wylde MK112 M112RA1B RIFLE 300 BLK MK112 M112RB1B RIFLE 223 Wylde MK114 M114RA1B RIFLE 223 Wylde MK114 LE M114RA1BLE RIFLE 223 Wylde MK116 M116RA1B RIFLE 300 BLK MK116 M116RB1B RIFLE 223 Wylde MK118 M118RA1B Curren
27. cation which impairs even slightly your mental or physical ability ALWAYS HAVE ADEQUATE VENTILATION Discharging fi rearms in poorly ventilated areas cleaning fi rearms or handling ammunition may result in exposure to lead and other substances known to cause birth defects reproductive harm and other serious physical injury Review the warnings and labels for all ammunition and cleaning products carefully Wash hands thoroughly after exposure BEFORE HANDLING ANY FIREARM UNDERSTAND ITS OPERATION Not all fi rearms are the same Familiarize yourself with the mechanical features of any fi rearm you intend to use If you feel uncertain about any operational aspects of your PWS firearm please contact PWS Customer Service at 208 344 5217 before proceeding with its operation PWS MK1 MOD 1 USER MANUAL VER 2013 04 NEVER ALLOW A FIREARM TO BE USED BY INDIVIDUALS WHO DO NOT UNDERSTAND ITS SAFE OPERATION 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 which 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
28. 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 NOTE An inactive weapon is a weapon which has been stored in an arms room for a period of 90 days without use The weapon may or may not have been assigned to an individual Inactive weapons shall receive quarterly PMCS unless inspection reveals more frequent servicing is necessary Normal cleaning PMCS of an inactive weapon will be performed every 90 days Should the unit armorer detect corrosion ona weapon prior to the end of the 90 day period the PMCS should be performed immediately 23 PWS MOD 1 USER MANUAL VER 2013 04 ITEMS TO BE ITEM NO INTERVAL CHECKED OR PROCEDURE SERVICED i 1 Quarterly Charging handle Pull charging handle 1 to rear Ensure Charging handles does not did d INO SIG ie d HIO d IIG 114 i JO dille J E N A Z assembly and selector lever chamber is clear Let bolt carrier assembly 2 close Leave hammer in cocked position Do not pull trigger Place selector lever 3 in SAFE position Pull Trigger Place selector lever 3 in SEMI position Pull Trigger Hold trigger to the rear charge weapon and release the trigger with a slow smooth motion without hesitations or stops until the trigger is full forward an audible click should be heard Rep
29. ction port cover 13 Hold helical spring and election port cover in position and install headless grooved pin 12 Check for proper spring tension and function before installing retaining ring 11 If forward assist assembly was previously disassembled place forward assist spring 18 into the upper receiver followed by the forward assist assembly 17 Depress the forward assist plunger 17 until the groove is lined up with the hole in the receiver Place the forward assist spring pin 15 into the hole on the receiver 16 and tap in with a small hammer until flush End Reference to Illustration on Page 51 Slide the key mod rail 12 onto the trunnion 4 ensuring that the rail lines up with the guides on the trunnion Place the shim set or crush washer 11 over the muzzle and thread the muzzle device on by hand Tighten with a wrench until properly aligned If a logo is present proper orientation is achieved when the logo is straight up at top dead center TDC Slide key mod rail with the screw hole portion over muzzle Completely seat the rail against the upper receiver Install six Allen screws using a calibrated torque wrench to 60 inch pounds While tightening screws ensure the top of the rail is not in contact with the rail LOWER RECEIVER AND BUTTSTOCK ASSEMBLY This task covers a Disassembly d Repair b Cleaning e Lubrication Inspection f Reassembly INITIAL SETUP Tools Small Arms Repairman Kit Ap
30. destroy whether or not it is loaded This is particularly important when loading unloading or field stripping the gun ALWAYS control the direction of the firearm ALWAYS TREAT EVERY FIREARM AS IF IT IS LOADED AND WILL FIRE Do not take anyone s word that the fi rearm is unloaded always check for yourself Never pass your fi rearm to another person until the cylinder or action is open and you visually check that it is unloaded Keep your fi rearm 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 which can cause ricochets Be sure your bullet will stop behind your target Bullets can ricochet 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 fi rearm for purposes of discharging your fi rearm 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 fi rearm if you are on any medi
31. dures will be illustrated 6 When the word rifle is referenced in text it will reference the rifle and the carbines INDEXES This manual is organized to help you find the information you need quickly There are several useful indexes 1 Table of Contents lists in order all chapters sections and appendixes along with the referenced pages 2 Chapter Overviews Summarize material covered in the chapter are located at the beginning of each chapter 3 Symptom Index Located just before the troubleshooting table in each maintenance chapter lists in alphabetical order parts of the rifle with possible malfunctions MAINTENANCE PROCEDURES There are two maintenance chapters Each maintenance task has an initial setup containing a list of the following things you will need in order to do maintenance task 1 Tools and Special Tools For standard and special tools see appendixes A 2 Materials Parts Lists expendable materials followed part number or appendix reference 3 References Lists other publications containing necessary information 4 Equipment Condition Lists conditions to be met before starting the procedure 5 General Safety Instructions Lists safety instructions to follow before performing maintenance procedures 12 PWS MK1 1 USER MANUAL VER 2013 04 EXTERNAL VIEW OF THE MK1 SERIES RIFLE RIGHT SIDE FORWARD ASSIST ASSEMBLY GAS BLOCK ADJUSTMENT KNOB BARREL MAGAZI
32. eat the above SEMI position test five times MK1s Select Fire Version Only Place selector lever 3 in AUTO position charge the weapon and squeeze the trigger Hammer should fall Hold trigger to rear charge the weapon and release the trigger Squeeze the trigger Hammer should not fall lock in place when in the forward position Hammer falls Hammer does not fall Hammer Falls The weapon malfunctions during any of these five tests Hammer does not fall Hammer Falls 24 PWS MK1 MOD 1 USER MANUAL VER 2013 04 ITEMS TO BE ITEM NO INTERVAL CHECKED OR PROCEDURE ee SERVICED 1 Ouarterly Charging handle NOTE cont assembly and selector Automatic sear should have released lever cont hammer while holding trigger in the squeezed position before releasing and re squeezing the trigger All Weapons With Moderate finger thumb hammer in forward position using pressure moves selector moderate finger thumb pressure attempt lever to SAFE position to place the selector lever 3 in SAFE position 2 Quarterly Upper receiver and Inspect handguard assembly 1 for Rails are missing or barrel assembly cracks and or other damage Dings and unserviceable handguard dents are acceptable in rails providing assemblies they do not prohibit attaching accessories to the picatinny rails 3 Quarterly Upper receiver and Release takedown pins and open and Compensator or barrel is barrel
33. g sections a Repair Parts Special Tools and Support Equipment b Service Upon Receipt c Preventive Maintenance Checks and Services PMCS d Troubleshooting 6 Maintenance Procedures Section I REPAIR PARTS SPECIAL TOOLS TMDE AND SUPPORT EQUIPMENT 2 1 COMMON TOOLS AND EQUIPMENT Allen Wrench Set Standard 1 1 4 x 3 32 Pin Punch 1 Needle Nose Pliers 1 MK1 MK2 Bolt Assembly 1 Roll Pin Starter Punch 9 1 PWS Cleaning Kit 1 Dead Blow Hammer 80z 1 Roll Pin Punch 8 1 Ball Peen Hammer 120z 1 Open End Wrench 3 4 5 8 1 Ball Peen Hammer 407 1 Torque Wrench In Lbs 1 3 32 No 3 Roll Pin Punch 1 Loctite 262 1 3 8 x 3 16 Pin Punch 1 Upper Receiver Block 223 1 1 4 x 1 16 Pin Punch 1 Lower Receiver Block 223 1 2 2 SPECIAL TOOLS AND SUPPORT EQUIPMENT No special tools are required for end user maintenance 2 3 REPAIR PARTS Repair parts are listed and illustrated in appendix B of this manual Section SERVICE UPON RECEIPT 2 4 GENERAL a Inspect the rifle for damage incurred during shipment If rifle has been damaged report the damage immediately to PWS Customer Service b Check the rifle and corresponding serial numbers against the packing slip to see if shipment is complete 2 5 SERVICE UPON RECEIPT OF MATERIEL 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
34. here practical 2 7 PREVENTIVE MAINTENANCE CHECKS AND SERVICES 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 a General The PMCS procedures are contained in the table following They are arranged in logical sequence requiring a minimum amount of time on the part of the persons performing them b Item No Column Checks and services are numbered in disassembly sequence Interval Column This column gives the designated interval when each check should be performed d Item To Be Checked Or Serviced Column This column lists the items to be checked or serviced 6 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 NOTE For the purpose of this technical manual the following definition is supplied This definition is not intended to apply to any other document Shortcoming SH A fault that requires maintenance or supply action on a piece of equipment but does not render equipment Not Mission Capable f Not Fully Mission Capable If Column This column
35. his is not a defect MODIFICATION WARNING YOUR PWS FIREARM WAS DESIGNED TO FUNCTION PROPERLY WITH ITS ORIGINAL COMPONENTS 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 11 PWS MK1 MOD 1 USER MANUAL VER 2013 04 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 Reference 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 Whenever the male gender is mentioned in the manual i e crewman repairman it also pertains to females 4 When the term evacuate to support maintenance is used the entire rifle must be evacuated to a qualified service center 5 When a procedure is common to MK1 series rifles ONLY the MK112 configuration will be depicted If a selected procedure is not common to all models of the MK1 series separate proce
36. is achieved when the logo is straight up at top dead center TDC If loose or out of alignment repair or replace as needed Inspect top rail of the key mod rail 12 for damage that would prevent the attachment of accessories onto the Picatinny rail Replace as necessary Inspect the outside of the rail 13 for damage to that would prevent the attachment of the key mod rail sections replace as necessary REPAIR Repair or replace all unserviceable parts LUBRICATION Lightly lubricate all items Do not over 17 18 lubricate this can cause the action to become sticky allowing dust and debris to collect REASSEMBLY NOTE If components were not replaced and the upper was not disassembled skip to the next section If ejection port cover assembly was previously disassembled position ejection port cover 13 and helical spring 14 on edge of receiver 16 with short leg of helical spring to the rear on the inside of the ejection port cover NOTE Long leg of helical spring 14 must be position and pretensioned before the headless groove pin 12 is installed Hold helical spring 14 with the short leg pointing up and turn long leg one half turn 180 degrees If spring spreads or bows you are turning it the wrong direction 50 PWS MK1 MOD 1 USER MANUAL VER 2013 04 2 16 3 UPPER RECEIVER AND BARREL ASSEMBLY CONT 2 17 Referring to illustration on Page 51 Position long leg of helical spring 14 against eje
37. l life depends on how fast the rifle is fi red and how accurate the shooter insists it must be Firing the rifl e as fast as the trigger can be pulled or sustained full auto fi re 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 15 000 to 20 000 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 APPEARANCE AND RECEIVER FIT Your new rifle is not a custom fi rearm PWS requires a close fi t between the receivers but normal forging and machining variations may result in play or slight side to side receiver mismatch This is not a manufacturing 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 fi ring 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 T
38. ld be heard Spring is kinked or does not meet free length requirements Components are defective or damaged Components are defective or damaged 29 PWS MK1 MOD 1 USER MANUAL VER 2013 04 ITEM ITEMS TO BE NOT FULLY MISSION NO INTERVAL CHECKED OR SERVICED PROCEDURE CAPABLE IF Lubricate helical compression spring and Lower Receiverand takedown pin detent 14 by placing one drop buttstock assembly of lubricant in the channel at the rear of the serviceability check takedown pin Allow the lubricant to work its Quarterly continued way around the pin detent and spring 14 Components are damaged 6 The buffer tube or buttstock Check buffer tube 15 and buttstock is cracked or otherwise assembly 16 for damage defective 30 PWS MK1 MOD 1 USER MANUAL VER 2013 04 Section IV TROUBLESHOOTING 2 8 GENERAL 8 This section contains unit level troubleshooting information for locating and correcting most of the operating troubles which may develop in the MK1 Series carbine Each malfunction for the individual part or assembly is followed by a list of tests or inspections which will help you to determine the corrective actions in the order listed b 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 maintena
39. lity check 2 ejector 3 and ejector spring 4 for dirt and serviceability If dirty clean lubricate and reassemble If unserviceable replace as necessary Check bolt carrier assembly 5 carrier key and operating rod assembly 6 and piston 7 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 unserviceable Bolt carrier assembly or bolt is damaged or unserviceable Carrier key is loose Firing pin is damaged 28 PWS MK1 MOD 1 USER MANUAL VER 2013 04 ITEM ITEMS TO BE CHECKED NOT FULLY MISSION NO OR SERVICED PROCEDURE CAPABLE IF Lower Receiver and Buffer assembly is cracked buttstock assembly Remove buffer assembly 1 and action 6 Quarterly serviceability check spring 2 Check buffer assembly for cracks Check action spring 2 for kinks and free length Free length should be 10 1 16 inches 25 56cm minimum to 11 1 4 inches 28 58cm maximum Do not attempt to adjust spring length Remove pistol grip screw 3 Grip insert 4 Gas Block Adjustment tool 5 lock washer 6 pistol grip 7 helical spring 8 safety detent 9 selector lever 10 pivot pin 11 pivot pin detent 12 and helical spring 13 Clean and lube as necessary Disengage takedown pin 14 and pull out Push back in to re engage takedown An audible click shou
40. ly and extension assembly ADJUSTABLE GAS BLOCK The 4 position adjustable gas block allows the user to adjust for standard ammo position 1 military 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 16 1 4 EOUIPMENT DATA PWS MK1 MOD 1 USER MANUAL VER 2013 04 US CUSTOMARY METRIC Weight MK107 223 Wylde without magazine 5 Ibs 12 oz 2 61 kg MK110 223 Wylde without magazine 6 Ibs 2 oz 2 79 kg MK112 300 BLK without magazine 6 Ibs 3 oz 2 82 kg MK112 223 Wylde without magazine 6 Ibs 7 oz 2 91 kg MK114 223 Wylde without magazine 6 Ibs 8 oz 2 96 kg MK116 223 Wylde without magazine 6 Ibs 10 oz 3 01 kg MK116 300 BLK without magazine 6 Ibs 7 oz 2 91 kg MK118 223 Wylde without magazine 6 Ibs 15 oz 3 15 kg Overall Length MK107 with compensator buttstock closed 24 25 in 61 6 cm MK110 with compensator buttstock closed 27 5 in 69 9 cm MK112 with compensator buttstock closed 29 2 in 74 9 cm MK114 with compensator buttstock closed 31 4 in 79 7 cm MK116 with compensator buttstock closed 33 0 in 83 8 cm Mk118 with compensator buttstock closed 34 9 in 88 6 cm Barrel Length MK107 all calibers 7 75 in 19 7 cm MK110 all calibers 10 75 in 27 3 cm MK112 all calibers 12 5 in 31 75 cm MK114 all calibers 14 5 in 36 8 cm MK116 all calibers 16 in 40 6 cm MK1
41. m the rear portion of the key mod rail 3 Pullthe key mod rail off the muzzle end of the upper receiver 48 PWS MK1 MOD 1 USER MANUAL VER 2013 04 2 16 1 UPPER RECEIVER AND BARREL ASSEMBLY CONT 4 Remove retaining ring 11 and slide headless grooved pin 12 out to the rear Catch cover spring 14 and ejection port cover 13 to prevent loss as headless grooved pin 12 is withdrawn Tap the forward assist spring pin 15 out of the upper receiver 16 from top to bottom using a 1 16 inch punch and hammer Catch the forward assist 17 and spring 18 to prevent loss CLEANING Clean all items refer to user manual INSPECTION Inspect upper receiver 1 for breaks cracks or damage to the top rail that would prevent the attachment of accessories onto the Picatinny rail Replace as necessary Inspect forward assist assembly 2 Ensure that the forward assist fully depresses and returns without binding Replace defective components Inspect ejection port cover 3 Ensure the ejection port cover closes and latches as well as springs open when pushed open by either your fingers from the inside of the receiver or from the movement of the bolt carrier group Replace defective components Inspect trunnion 4 and barrel nut 5 for cracks or damage Replace as needed Inspect barrel 6 for pits in bore burrs broken or worn locking lugs and or surface cracks and or defects Pits no wider than a land
42. mum Range Area Target 328 yds 300m MK110 223 Wylde Semiautomatic 45 rds min Burst 90 rds min Sustained Rate of Fire 12 15 rds min Maximum Range Point Target 328 yds 300m Maximum Range Area Target 437 yds 400 m 18 1 4 2 EOUIPMENT DATA cont Maximum Rate of Fire continued MK112 223 Wylde Semiautomatic Burst Sustained Rate of Fire Maximum Range Point Target Maximum Range Area Target MK112 300 BLK 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 MK1116 300 BLK Semiautomatic Burst Sustained Rate of Fire Maximum Range Point Target Maximum Range Area Target MK118 223 Wylde Semiautomatic Burst Sustained Rate of Fire Maximum Range Point Target Maximum Range Area Target US CUSTOMARY 45 rds min 90 rds min 12 15 rds min 437 yds 547 yds 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 45 rds min 90 rds min 12 15 rds min 547 yds 656 yds 45 rds min 90 rds min 12 15 rds min 656 yds 765 yds PWS MK1 MOD 1 USER MANUAL METRIC 4
43. nce procedures on each major assembly 2 9 TROUBLESHOOTING PROCEDURES Refer to troubleshooting table for malfunctions tests and corrective actions The symptom index is provided for a quick reference of the malfunctions covered in the table SYMPTOM INDEX Page Failure of magazine to lock in rifle 33 Failure to feed 33 Failure to chamber 34 Failure to lock 34 Failure to fire 36 Failure to unlock 37 Failure to extract 37 Failure to eject 37 Failure to cock 38 Short recoil 38 Rifle cannot be zeroed 39 Failure to cycle with selector lever set on BURST 39 Fires two rounds with one pull of trigger with selector lever set on SEMI double firing 39 Fires with selector lever on SAFE or when trigger is released with selector lever on SEMI 39 Bolt assembly falls to lock to rear after firing last round 39 31 PWS MK1 MOD 1 USER MANUAL VER 2013 04 GAS ADJUSTMENT SETTINGS Before starting any trouble shooting ensure that the gas adjustment knob is in the proper position The 4 position adjustable 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 JER Position 3 marked with 3 circles is for suppressed use when running standard ammunition El je l Position 1 marked by a single large circle is for normal operation and can be used with standard ammo or in many cases with military ammo Position 2 marked by 2 circle
44. ng 7 and cartridge ejector 6 in place with a 3 8 inch punch 5 Using hammer and 1 16 Inch punch complete installation of spring pin 5 so that the ends are flush with the outside of bolt body 1 NOTE Do not disassemble rubber Insert from extractor spring assembly 6 If removed Insert large end of extractor spring assembly 4 into cartridge extractor 3 and seat by pushing and turning clockwise 7 Position cartridge extractor 3 and extractor spring assembly 4 on bolt body 1 8 Compress extractor spring assembly 4 and cartridge extractor 3 to align holes 9 Install extractor pin 2 by hand 10 Reassemble rifle refer to page 54 46 2 15 CHARGING HANDLE ASSEMBLY This task covers a Disassembly b Cleaning Inspection Repair INITIAL SETUP Tools Small Arms Repairman Kit Appendix A Item 5 Equipment Conditions Charging handle assembly removed a DISASSEMBLY NOTE To avoid injury to eyes use care when removing and installing spring loaded parts 1 Remove spring pin 3 from charging handle 1 using a hammer and a 1 16 inch punch As punch is withdrawn catch charging handle latch 2 and helical spring 4 to prevent loss b CLEANING PWS MK1 MOD 1 USER MANUAL VER 2013 04 d Lubrication e Reassembly Clean all exterior surfaces of the charging handle as well as the groove in the bottom of the charging handle INSPECTION REPAIR Inspect all items for breaks
45. ng the trigger 6 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 room perform the following functions 1 Clear refer to user manual 2 Place selector lever in SEMI position 3 Pulltrigger Hammer should fall 4 Close ejection port dust cover 5 Place weapon in rack 55
46. onditions 10F 12C and below Any lubricants may be used from 10 F to 100F 12C to 38 C Rifle Bore Cleaner RBC may be used to remove carbon buildup in the bore and other portions of the rifle NOTE Do NOT lubricate the piston head The illustration below 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 LUBE NO LUBE 40 PWS MK1 MOD 1 USER MANUAL VER 2013 04 2 12 MAJOR COMPONENTS MK1 SERIES RIFLES This task covers disassembly INITIAL SETUP Equipment Conditions Series 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 2 a Remove Magazine 1 bolt carrier charging handle assembly 2 upper receiver and barrel assembly 3 from lower receiver and buttstock assembly 4 41 PWS MK1 MOD 1 USER MANUAL VER 2013 04 2 13 BOLT CARRIER ASSEMBLY This task covers a Disassembly d Lubrication b Cleaning e Reassembly Inspection Repair INITIAL SETUP Tools Small Arms Repairman Kit Appendix A Item 5 Equipment Conditions Bolt carrier assembly removed General Safety Instructions
47. pendix A Item 5 Piston Pin Installation Removal Tool Appendix A Item 1 Upper Receiver Action Block Appendix A Item 7 Materials Parts Lubricants Equipment Conditions Lower receiver and buttstock assembly removed 51 PWS MK1 MOD 1 USER MANUAL VER 2013 04 2 17 1 LOWER RECEIVER AND BUTTSTOCK ASSEMBLY CONT a DISASSEMBLY 2 Remove screw 3 and lock washer 6 3 Carefully remove pistol grip 7 and catch helical spring 4 and safety detent 5 to prevent loss 4 Extend buttstock assembly 5 Pull down sharply on lock release lever 6 and pull stock rearward and off of the buffer tube 1 6 Using the Pivot Pin Removal Tool depress pivot pin detent 9 Turn pivot pin 11 a quarter turn slide tool out of the way and remove the pivot pin 7 Use your hand to cover and catch the pivot pin detent 9 and spring 10 upon removal to avoid loss 8 Push the buffer retaining pin 14 down to allow the buffer 12 and buffer spring 13 to move forward Remove buffer and buffer spring b CLEANING Clean all items Remove all carbon deposits c INSPECTION 1 Inspect buffer assembly 12 2 If cracked replace 3 Check free length of buffer spring 13 The free length must be between a minimum of 10 1 16 inches to maximum of 11 1 4 inches If not replace Do not attempt to adjust the length by stretching the buffer spring 4 Inspect lower receiver 18 without further disassembly 5 Inspect for missing o
48. place magazine Step 3 Broken bolt catch and or spring Replace bolt catch and or spring 39 PWS MK1 MOD 1 USER MANUAL VER 2013 04 Section V MAINTENANCE PROCEDURES 2 10 INITIAL SETUP The following information will reduce the space required for the initial setup portion of the maintenance procedures a Materials Parts required are not listed unless they apply to the procedure b Personnel required is listed only if the task requires more than one person c 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 2 11 LUBRICATION GENERAL PWS uses and recommends the Gun Ease line of cleaning products PWS has assembled a cleaning kit specifically for the and MK2 series rifles and uppers Whenever the term cleaner lubricant preservative CLP or the words 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 Under all but the coldest arctic conditions CLP LSA or other such lubricants can be used as long as they are designed to operate in the conditions in which they are being deployed LAW is the lubricant to use during cold arctic c
49. r damaged parts Inspect finish of lower receiver for shiny spots 52 PWS MK1 MOD 1 USER MANUAL VER 2013 04 2 17 2 LOWER RECEIVER AND BUTTSTOCK ASSEMBLY CONT d REPAIR 1 Upon completion of inspection repair or replace items as needed Do not exceed the level of maintenance authorized by your agency or unit e LUBRICATION 1 Lightly lubricate all metal components Do not over lubricate f REASSEMBLY 1 Press buffer spring 13 and buffer assembly 12 in to the buffer tube until buffer retaining pin 14 engages 2 Install the spring 10 and pivot pin detent 9 and hold down with Pivot Pin Installation Tool 3 Position the pivot pin 11 so that the groove in the bottom faces toward the bottom of the magazine well and slide into place ensuring the detent pin does not come out Rotate pivot pin until a click is heard signaling the detent is in the groove 4 Slide buttstock 7 over buffer tube 8 Pull down on lock release lever 6 and slide stock all the way forward 5 Install safety detent 5 and helical spring 4 into the bottom of the receiver 6 Carefully install pistol grip 3 and secure in place with lock washer 2 and screw 1 53 2 18 MAJOR COMPONENTS OF MK1 SERIES RIFLES This task covers a Reassembly b Inspection INITIAL SETUP Equipment Conditions Rifle disassembled into major components General Safety Instructions PWS MK1 MOD 1 USER MANUAL VER 2013 04 c
50. s is for use with hotter loads such as military ammunition Position 4 marked with 4 circles is for suppressed use when running hotter loads such as military ammunition The X position is used only to remove the gas plug for annual maintenance ONLY FIRING YOUR WEAPON WHILE ON THE X SETTING WILL CAUSE DAMAGE AND OR LOSS TO YOUR GAS ADJUSTMENT KNOB 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 1 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 32 MALFUNCTION TROUBLESHOOTING TEST OR INSPECTION CORRECTIVE ACTION 1 FAILURE OF MAGAZINE TO LOCK IN RIFLE Step 1 Step 2 Step 3 2 FAILURE TO FEED Step 1 Step 2 Step 3 Step 4 Dirty or corroded magazine catch 1 Disassemble and Clean Defective magazine catch spring 2 Replace spring Worn or broken magazine catch 1 Replace magazine catch Magazine catch spring weak or broken Replace spring Magazine catch 1 defective Replace magazine catch Magazine catch 1 out of adjustment will not retain magazine Adjust magazine catch Short recoil Refer to page 38
51. t as of April 2013 CONTENT ADOPTED FROM US ARMY TM 9 1005 319 23 amp P PWS MK1 MOD 1 USER MANUAL VER 2013 04 PWS MK1 MOD 1 USER MANUAL VER 2013 04 TABLE OF CONTENTS CLEARING PROCEDURE N RR EE 8 TABLE OF ae 5 EE TE 8 SAFETY IS YOUR NUMBER RESPONSIBILITY iss soes sessie ies eke die bede io seus dese Ge se dee ge Ee we oi ke Gesie eke ese Gede EG ge ek ede ek Se ge ee Ee ieSe 9 SAFETY WARNINGS 5 ES Eed bee ER De comes ee RE Moe vans OE EO Ge cane su 9 FIREARM YSE WARNING is GEES ees ee dee bede oe se es Ge de ee ei or cuvwacecdice Ge OE GEE EE De EG Ge ee OG Ge RE De GE ee Ede Gee ede Ge SE EE eg GE RE ee ee de Se dee 10 USED FIREARMIDISGUAIMER ee ae Ee ON GO Tee EE 10 GENERAL INFORMATION Ee Ge ee Ee GE 11 N N AE 11 APPEARANCE AND RECEIVER GEE se GEE EES Ee ee Oe Gee gee 11 MODIFICATION WAR Ie ER EE EE EE OO N EE EE EE N N 11 HOW TOUSE THIS MANUAL EG EG Dee ee ee RED De 12 RE AE EE AE RA RA AE EE MS EE AA EA EER SS ER 12 carne ca at Se Ee Oe Oe
52. y 5 down and drop firing pin 3 in through the back of the carrier 2 4 Install firing pin retaining pin 1 from left side only to ensure proper installation check for proper installation by holding bolt carrier assembly 2 with bolt assembly 5 up then attempt to shake out firing pin 5 To replace piston head install charging handle by sliding op rod through the hole located on the front of the charging handle 6 Install piston by sliding piston 7 onto operating rod as shown 7 Reassemble rifle refer to page 54 44 PWS MK1 MOD 1 USER MANUAL VER 2013 04 2 14 BOLT ASSEMBLY This task covers a Removal d Lubrication b Cleaning e Reassembly c Inspection INITIAL SETUP Tools Small Arms Repairman Kit Appendix A Item 5 Equipment Conditions Bolt assembly removed General Safety Instructions Do not Interchange bolt assemblies from one rifle to another Doing so may result in injury to or death of personnel To avoid injury to your eyes use care when removing and installing spring loaded parts a DISASSEMBLY NOTE Do not separate cartridge extractor and extractor spring assembly unless replacement of either or both are required Do not remove the rubber Insert from the extractor spring assembly 1 Push out extractor pin 2 and remove cartridge extractor 3 and extractor spring assembly 4 as a unit 2 If required twist extractor spring assembly 4 counterclockwise to remove from cartridge
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