LWRC SIX8-A5 Upper Features The LWRC SIX8-A5 Upper pairs a 16 inch barrel with the 6.8 SPC cartridge a chambering developed to deliver more downrange energy than standard 5.56 NATO while still running through an AR-15 pattern receiver. That extra performance makes the SIX8-A5 appealing to hunters and shooters who want additional terminal effect without stepping up to a larger heavier platform. Finished in black the upper is built around LWRC s forged aluminum receiver construction giving it the same durability the company applies across its product line. A 16 inch barrel length keeps the rifle balanced and maneuverable while still extracting solid velocity from the 6.8 SPC round. This upper ships complete including an LWRCI bolt carrier group an ambidextrous charging handle for left and right-handed shooters alike an H2 buffer and matched carbine length action spring LWRCI Skirmish folding back up iron sights and an A2 birdcage flash hider to control muzzle signature. Having every one of these components included means a builder can mount the upper onto any compatible Mil-Spec lower and be ready to shoot without hunting down individual parts. LWRC designs machines and finishes its uppers entirely in Cambridge Maryland reflecting the company s commitment to domestic manufacturing. Available for sale at GrabAGun the LWRC SIX8-A5 Upper gives AR-15 owners a complete ready-to-run path into the 6.8 SPC cartridge. LWRC SIX8-A5 Upper Specifications Manufacturer: LWRC Model: SIX8-A5 Upper Caliber: 6.8 SPC Barrel Length: 16 Color: Black Includes: Bolt Carrier Group Ambidextrous Charging Handle H2 Buffer Carbine Length Spring Skirmish BUIS A2 Flash Hider Available At: GrabAGun