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The Six8™ weapons are short-stroke, gas-piston operated rifles  chambered in the 6.8x43mm SPC II cartridge. This cartridge was developed as part of the Enhanced Rifle Cartridge Program in which U.S. Special Operations soldiers, as well as armorers and other technicians from the U.S. Army Marksmanship Unit, played a major role. Its primary purpose 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 a minimal weight penalty. By using a heavier projectile, the 6.8 round offers higher accuracy and more impact energy than the 5.56 NATO round 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. To solve this issue, we designed our Six8 family of weapons around the magazine. Through a partnership with Magpul®, the leader in polymer magazine engineering, we designed the first polymer 6.8 magazine. After perfecting the magazine, we then designed the Six8™ platform for 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, we are using our close relationship with Federal Ammunition to develop new lines of affordably priced, high performance 6.8 ammunition for commercial, law enforcement and military applications.

As with the IC family, the weapons in the Six8™ family are fully ambidextrous and equally suited to right- or left-handed operators. Our Six8™ rifles are, put simply, the familiar Stoner M4/AR-15/M16 architecture fully optimized for the 6.8 cartridge.

The Six8™ family combines the ultimate in ergonomic user-friendly rifles with the outstanding mid-range 6.8 cartridge.

Six8 SPR (Special Purpose Rifle) Specifications

  • Proprietary upper and lower receiver optimized for the 6.8 SPC cartridge. 
  • Magpul® polymer high reliability 30-rd magazine with high-visibility follower. 
  • Enlarged ejection port allows unhindered ejection of the 6.8 casings. 
  • LWRCI™ Skirmish Back-Up Iron Sights.8.5" Cold hammer forged barrel. 1:10 twist rate will stabilize a wide range of bullet weights and types.7” ARM-R Quad Rail. 
  • Short-stroke piston operation offers unparalleled reliability. 
  • The LWRCI™ UCIW system includes a short buffer tube, a precisely-sized spring, and a short buffer assembly. The Ultra Compact Stock is a shorter version of our standard-issue stock. 
  • The UCIW system shortens the overall length of the weapon by a full inch without changing ejection patterns or cyclic rates. 
  • LWRCI™ Enhanced Fire Control Group: Our investment castings are x-rayed for inclusions prior to machining and nickel-boron coated for a smooth crisp trigger pull with positive reset. 
  • LWRCI™ High Efficiency Flash Hider. 
  • LWRCI™ Ambidextrous Charging Handle.
  • Caliber: 6.8 SPC
  • Barrel: 8.5
  • Weight: 6.25
  • Length: 24-27.25
  • Muzzle Threads: 5/8x24
  • Rifling: 1:10” RH
  • Muzzle Device: LWRCI High Efficiency Flash Hider

This is an NFA controlled Item.

FFL Restrictions

FFL/SOT Requirements This item can only be shipped to a Licensed Federal Firearms/Special Occupational Tax Dealer.  Please our firearms shipping policy 

Export Restrictions

Government Export Restriction This item may be regulated for export by the U.S. Department of State or the US Department of Commerce. Please see our Export Policy.

ITAR Restrictions

ITAR Product By adding to cart, I understand, acknowledge, and agree to the Export Policy. I am a US Person, and I do not intend to export this product.  Please see our Export Policy.

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