Diamondback DB10 308 Winchester 16in Flat Dark Earth Cerakote Semi Automatic Modern Sporting Rifle - 20+1 Rounds - This DB10 Rifle features a mid-length, light 4150 ChromeMoly barrel, mid-length gas system, and a shot-peened Mil-Spec 8620 bolt carrier. It has 7075-T6 aluminum receivers, 15in M-Lok handguard, Magpul MOE-K grip, and a Magpul MOE Carbine stock.