WARRANTY CARD Please complete and return the form below to submit your Warranty. For more information on our Warranty and Return Policy, please go to our web site or contact our customer service. REV A 1 DWG NO. *Model No.: *Serial Number: *Purchase Date: *Dealer ID: *City/State *Zip Code: *First Name: *Last Name: D 2 M6 SERIES CARBINES 3 4 OPERATOR’S MANUAL LW R C I n t e r n at i o n a l , L L C C D 815 Chesapeake Drive Cambridge Maryland 21613 w w w . lw r i f l e s .
H I S TORY LWRC International, LLC of Cambridge, Maryland, acquired the assets of LWRC, Inc. of Springfield, Virginia, in April 2008. During the previous decade, LWRC Inc. was engaged primarily in research and development activities that concentrated on eliminating the inherent shortcomings found in the M16/M4 direct impingement systems. These efforts have resulted in LWRC International’s family of M6 short-stroke, gas-piston operated rifles and carbines.
DO NOT OPERATE ANY LWRCI RIFLE PRIOR TO READING THIS MANUAL This manual contains important safety information that will allow you to safely operate the M6 Series Rifle. Read the entire manual prior to operating the weapon. Follow all safety rules and operator instructions contained herein. Ensure this manual remains with this weapon. Table of Contents 1.1 About This Manual: 3 1.2 Warnings and Safety Data: 3 1.3 Safety Information and Procedures: 4 1.4 General Safety Procedures: 4 1.
1.1 About This Manual: The purpose of this manual is to provide instruction on the safe operation, detail maintenance procedures and provide general information for the M6 Series of Carbines and Rifles. Thoroughly read this manual prior to operating your weapon and follow all safety rules and procedures outlined within. Ensure you also observe all Local, State, and Federal Laws when possessing, transporting, or operating your LWRC International, LLC Carbine.
1.3 Safety Information and Procedures: The Four Safety Rules Treat every weapon as if it were loaded at all times. Never point your weapon at anything you don’t intend to shoot. Keep your finger straight and off the trigger until you intend to fire. Keep your weapon on safe until you intend to shoot. 1.4 General Safety Procedures: Whenever handling any weapon, clear it as soon as you pick the weapon up (refer to clearing procedures).
Always use hearing and eye protection when shooting any firearm. Be familiar with your weapon and its features, controls and operating procedures prior to shooting. Completely read this manual prior to operating your weapon. 1.5 Weapon’s Conditions Condition 4: Bolt forward on an empty chamber, ejection port cover closed, no magazine inserted, and selector lever on safe. Condition 3: Bolt forward on an empty chamber, ejection port cover closed, magazine inserted, and selector lever on safe.
Do not depend on the fact that no chambered round was ejected on clearing. You can still have a live round in the chamber that did not extract/eject because your extractor was broken, or the case rim was ripped off by the extractor. VISUALLY inspect the chamber to ensure it is clear. 1.6 Characteristics of the M6 Series of Rifles The M6 is an Incrementally Evolved version of the proven M4 carbine.
Figure 2: Upper Assy.
1.7 System Data: Weight (unloaded w/o accessories) 7.76 pounds Length (stock collapsed) 32” Barrel Length 14.5” Rifling Six Lands & Grooves 1:7” Right Hand Twist Trigger Pull (semi) 5.05 - 8.0 lbs Trigger Pull (auto) 5.05 – 8.0 lbs Caliber 5.
Operator Controls: 1. 2. 3. 4. 5. 6. Selector Lever (ambidextrous) Trigger Charging Handle Magazine Release (ambidextrous) Bolt Catch Gas Regulator Knob 7. 8. 9. 10. 11. 12. 13.
1.8 Controls Manual Safety - The M6 is equipped with a manual safety that is activated by the selector levers. There are ambidextrous selector levels on either side of the lower receiver. Placing the weapon on safe locks the entire fire control mechanism preventing the trigger from being actuated. Like the M4/M16, the safety only engages when the hammer is in the cocked position.
Trigger – The trigger is a single stage trigger set between 5.5-9 lbs in semi-auto and automatic auto-setting. Charging Handle – The M6 is equipped with a non-reciprocating top charging handle identical to that of the M4/M16 allowing the user to charge the weapon with either his/her dominant or non-dominant hand. The charging handle is grasped with the index and middle fingers on either side. On pulling, the charging handle latch will automatically disengage from the receiver.
Stock Adjustment Latch – Depending on the configuration of your rifle, pulling down on the rear of the stock adjustment latch (E-Mod) or depressing the stock latch (CTR or MOE) allows the stock to telescope or collapse to one of six positions allowing the user to configure the length of pull. Top Retaining Screws – These are captured screws (they will not come out when screwed all the way out) that allow the user to remove his top rail for access to the gas piston and barrel of the weapon.
Feeding- The recoil stroke concludes when the buffer halts the bolt carrier group. The recoil spring, which is compressed during the recoil stroke, drives the bolt carrier group forward commencing the counter recoil stroke. As the bolt carrier returns forward the next round is stripped from the magazine and directed into the chamber by the feed ramps. Chambering- As the bolt carrier group continues the counter recoil stroke the round is seated in the chamber.
2.1 – Pre-Fire Function Test The user should always complete a pre-fire function test of the action and fire control group before using the weapon and any time the weapon has been disassembled and reassembled. Semi-Automatic Mode 1. Ensure weapon is clear and in Condition 4 prior to performing functions check. 2. Insert an empty magazine fully into the magazine well and pull downward. The magazine should remain locked into the magazine well. 3. Grasp the charging handle and pull it firmly to the rear.
2.2 Pre-Fire Inspection (PFI) Perform the following inspection prior to each firing session. Start your PFI with a Condition 4 weapon. 1. Break your weapon down “shotgun style” by pulling out the rear take down pin and rotating the lower receiver down from the upper receiver. 2. Remove the bolt and bolt carrier by pulling the charging handle back approximately one inch and grasping the rear of the bolt and pulling it to the rear and down. 3.
2.3 Loading from Condition 4 Weapon Insert a loaded magazine firmly into the magazine well. Ensure the magazine is fully seated by tugging on it. Charge the weapon by firmly pulling the charging handle to the rear and releasing it (“slingshot” method). Rotate the selector port cover. to “SAFE”. If not immediately firing the weapon close the ejection 2.4 Firing Semi-Automatic Mode Starting with a Condition 1 weapon: Acquire and aim at target. Place selector on “FIRE.
2.7 Immediate and Remedial Actions Immediate action is defined as the prompt action taken by the operator to reduce a stoppage without investigating the cause. A stoppage is defined as any interruption in the cycle of operation. 1. Maintain the weapon pointed down range. 2. Attempt to place the weapon on “SAFE.” 3. Ensure the magazine is fully seated. 4. Pull the charging handle to the rear observing for ejection. 5.
4. Remove the bolt carrier assembly by pulling back half way on the charging handle then pull backwards and down on the bolt carrier assembly. 5. Remove the charging handle by pulling to the rear then downward. Make note of where the lugs on the forward part of the charging handle mate with the recess inside the upper receiver for re-assembly. 6. Remove the buffer and drive spring by depressing the buffer detent and pulling the buffer and spring from the lower receiver.
is free pull the operating rod, operating rod spring and operating rod spring cup forward then away from the receiver. Separate the operating rod, operating rod spring and operating rod spring cup. Pull the piston cup to the rear off of the nozzle. This completes detailed disassembly (refer to Figures 4- 12).
Either remove or lock back the carrier group. i Back out both pusher screws until they stop. Figure 7: Disassembly Step 7 Move the top rail forward 1/8th of an inch.
Lift off the top rail. i Figure 8: Disassembly Step 8 i Figure 9: Disassembly Step 9 i Grasp here pulling straight back into receiver.
Figure 10: Disassembly Step 10 i Lift the front end of the intermediate rod out. i Figure 11: Disassembly Step 11 Remove the piston cup.
Figure 12: Disassembly Step 12 Remove Operating Rod assembly. i 3.2 Assembly Assembly of the M6 Series is accomplished by reversing the disassembly steps. During reassembly take note of the following: 1. When reinstalling the operating rod, operating rod spring and operating rod spring cup rotate the operating rod spring cup until it fully seats against the barrel nut. 2.
7. When reinstalling the bolt carrier group, ensure that the bolt is fully extended and the charging handle is half way inserted prior to inserting the bolt carrier into the upper receiver. 8. When closing the upper and lower receiver rotate the lower receiver to the upper receiver until contact is made. Then push the rear take down pin all the way into the lower receiver. 4.
4.1 Detailed Operator’s Maintenance Perform detailed maintenance every 2,000 rounds or once weekly while operating in normal field conditions. Ensure weapon is clear prior to performing any maintenance. 1. Detail disassemble weapon as described in Section 3.1. 2. Perform Routine maintenance as detailed in the previous section. 3. Scrub extractor with GP brush dipped in cleaning solvent or CLP. Pay particular attention to remove any built up brass deposits in the extractor groove.
4.2 Maintenance Procedures for Adverse Climate Conditions 1. When operating in adverse environments LWRC Inc. recommends utilizing shoot through muzzle covers and gun covers (if tactical situation permits). 2. Pay particular attention that the ejection port cover is closed at all times when not firing your weapon. If weapons must be grounded stuff a rag into the magazine well. 3.
4.4 Lubricants and Cleaners The M6 Series is compatible with all standard U.S. Military and NATO specified small arms lubricants and cleaners. The manufacturer recommends SLIP 2000 EWL (extreme Weapons Lubricant for 1.0 oz tube). If changing from one lubricant to another clean off old lubricant by scrubbing parts with solvent, Simple Green or SLIP 2000 Carbon Killer. Lubrication Terms: Light Coat- A light coat of lubricant is not readily visible to the eye.
5.0 Trouble Shooting NOTE: When shooting with a silencer or suppressor please note the following: 1. 2. 3. 4. 5. 6. 7.
Failure to Fire CAUSE Defective ammunition/dead primer Broken/weaken hammer spring FOD (Foreign Object Detected) in Pin Channel (Fire Control Group) Worn Firing Pin CORRECTION Inspect all ammunition prior to use and ensure SAMI/NATO compliant Replace spring Disassemble and clean Replace firing pin Failure to Extract CAUSE Worn/Broken extractor/spring Corroded/Out of specification ammunition Worn or damaged piston return spring Torn case rim CORRECTION Replace extractor/spring Inspect all ammun
Warranty LWRC International products are warranted to be free from defective material and workmanship for a period of two years from the date of delivery to the original purchaser. LWRC International obligation under this warranty shall be limited to (1) repairing or (2) replacing any product upon inspection at LWRC International and based on its discretion, is found to defective in material or in workmanship.
Notes 31
M6 Series Patents Pending No part of this document may be copied, reproduced, or transmitted by any means, for any purpose without prior written permission from LWRC International, LLC. All images and text © 2007-2008 LWRCI Document ID: 002-0003 Rev.
