Regular price $2,294.00 Sale


Special Purpose Rifle

The SIX8™ SPR series weapons are short-stroke, gas piston operated rifles fully optimized for the 6.8 X 43mm SPC II cartridge.

Constructed using the highest quality materials, built on our patented self-regulating short-stroke gas piston system, machined from materials that belong to the super alloy family of steel alloys most often used in aerospace, LWRCI™ raises the bar on reliability and ease of maintenance- delivering the highest level of performance.

The SIX8™ SPR with proprietary upper and lower receivers optimized for the 6.8 SPC II cartridge including an enlarged ejection port allowing unhindered ejection of the 6.8 casings and the first polymer magazine designed specifically for the 6.8 SPC II round. The 12” user configurable SPR rail system with individual rail sections allow the shooter to place accessory rails where they are needed while maintaining its low profile ergonomic fit and function.

Dual Control fully ambidextrous lower receiver includes bolt catch and release, magazine release and fire control access from both sides of the SIX8™ SPR. LWRCI™ Enhanced Fire Control Group comes standard. Our investment castings are x-rayed for imperfections and nickel-boron coated for a smooth crisp trigger pull with positive reset.

The SIX8™ SPR comes with the LWRCI Mark II Advanced Combat Bolt in 6.8. The ACB features a fully supported bolt face for increased strength and case head support. The bolt face also an outer groove to collect dirt and brass shavings. Dual extractor springs and a claw-shaped extractor work together to ensure consistent, strong ejection in all conditions. Our nickel-boron coating completes the package making the ACB SIX8™ a true step up in 6.8 design. Gas-piston system can be accessed quickly by loosening two thumb screws.

Our SIX8™ SPR uses LWRCI™ manufactured- NiCorr treated cold-hammer forged standard heavy barrel. Nickel-boron coated bolt carrier delivers unparalleled wear resistance, corrosion resistance and permanent lubricity.

The LWRCI™ SIX8™ SPR comes complete with, LWRCI™ Skirmish Back Up Iron Sights, Ambidextrous Charging Handle, MagpulÒ MOE+ Grip, LWRCI™ High Efficiency 4-Prong Flash Hider and Magpul PMAG 6.8 SPC magazine with high-visibility follower.

The SIX8™ SPR combines the ultimate in ergonomic user friendly rifles with outstanding mid range on the 6.8 Cartridge platform.


  • Caliber: 6.8 SPC II
  • Barrel Length:14.7” (37.3 cm) | 16.” (40.9cm)
  • Weight: 6.95 lbs (3.22kg) | 7.25 lbs (3.29kg)
  • Muzzle Threads: 5/8 X 24 TPI
  • Rifling: 1/10”RH