The 6.8x43mm SPC cartridge was developed as part of the Enhanced Rifle Cartridge Program, in which U.S. Special Operations soldiers played a major role. The primary purpose of this program was to address the deficiencies in terminal performance seen with the 5.56x45mm NATO cartridge, while allowing the soldier to carry the same number of rounds with minimal weight penalty. This unique chambering succeeds, because it uses a heavier bullet with excellent accuracy, and delivers more energy across all effective ranges.

Until now, a major drawback of using the 6.8 cartridge in an M4 style weapon has been the lack of reliable magazines. So, when LWRCI designed the SIX8 family of weapons, they started with the magazine. Partnering with Magpul, the leader in polymer magazine engineering, they designed the first polymer 6.8 magazine. Building upon the magazine, the SIX8 platform provides maximum reliability and improved ergonomics. 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. In addition, Federal Ammunition has developed new lines of affordably priced, high performance 6.8 ammunition for commercial, law enforcement and military applications. The circle has been completed!

As with the IC family, the weapons in the new SIX8 family are fully ambidextrous and equally suited to right- or left-handed operators. The SIX8 rifles are based on the familiar Stoner M4/AR15/M16 architecture, but they have been optimized specifically for use with the 6.8 cartridge.

Specifications and Features:
6.8x43mm SPC
Barrel length: 16"
Weight: 7.25 Pounds
Length: 32"-35.25"
Semi automatic
Twist rate: 1:10"
Magpul pistol grip
LWRCI Compact stock
Folding BUIS (Back Up Iron Sights)
Magpul 6.8 PMAG included
Flash hider
Enlarged trigger guard
Free floating barrel
Gas piston operation
Extended handguard