LWRC Six8-A5 Semi-Automatic Centerfire Rifle

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LWRC Six8-A5 Semi-Automatic Centerfire Rifle for sale

LWRC SIX8 rifles are, put simply, the familiar Stoner M4/AR-15/M16 architecture fully optimized for the 6.8 cartridge. The upper and lower receivers are designed to accommodate the slightly larger polymer magazine and to perfect the feed geometry for the 6.8 cartridge. As with the IC family, the weapons in the SIX8 family are fully ambidextrous.


The 6.8X43MM SPC II cartridge was developed as a part of the Enhanced Rifle Cartridge Program to address the deficiencies in terminal performance seen with 5.56x45mm NATO cartridge while allowing the soldier to carry the same number of rounds with a minimal weight penalty. By using a heavier projectile, the 6.8 round offers more impact energy than the 5.56 NATO round across all effective ranges, effectively bridging the gap in lethality between 5.56 NATO and 7.62 NATO.

A major drawback of using the 6.8 Cartridge in an M4 style weapon has been the lack of reliable magazines. To solve this issue, LWRC designed the SIX8 family of weapons around the magazine. Through a partnership with Magpul, the leader in polymer magazine engineering, they designed the first polymer 6.8 magazine. The SIX8 PMAG features many of the same design characteristics of the standard PMAG, including the curved shape and familiar texture. The body is slightly wider, and the walls were strengthened in critical areas. The red follower makes the LWRC SIX8 magazine easy to pick out of a pile.



  • Proprietary Lower Receiver optimized for the 6.8 SPC II Cartridge
  • Full Ambidextrous Lower Receiver: bolt catch and release; magazine release and fire control
  • Patented Short Stroke Gas Piston System
  • 12″ Handguard with Picatinny rail sections included


Product Information

Cartridge 6.8mm Remington SPC
Capacity 30+1 Round
Weight 7.25 Pound
Barrel Length 16.1 Inches
Twist 1:10
Threads 5/8″-24
Hand Ambidextrous
Youth No
Barrel Contour Heavy
Action Type Semi-Automatic
Stock Type Collapsible
Stock Material Synthetic
Stock Color Black
Safety Ambidextrous Switch
Threaded Muzzle Yes
Barrel Finish Black
Front Sight Flip Up
Rear Sight Flip Up
Frame Material Aluminum
Muzzle Device A2 Flash Hider
Scope Included No
Frame Finish Flat Dark Earth
Magazine Style Detachable
Fluting Yes
Country of Origin United States of America
Included Mounts Yes

Delivery Information

Must Ship to FFL Dealer Yes
Shipping Weight 10.038 Pounds


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