Diamondback DB10 308 Winchester 18in Semi Automatic Modern Sporting Rifle - 20+1 Rounds - This DB10 rifle features a mid-length, medium 416 stainless steel, fluted barrel, mid-length gas system with pinned gas block, and a shot-peened Mil-Spec 8620 bolt carrier. It utilizes 7075-T6 aluminum receivers, 15in M-Lok anti-rotation handguard, Magpul MOE-K2+ grip, and a Magpul ACS-L stock.