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, 15" M-Lok handguard, Magpul MOE-K grip, and a Magpul MOE Carbine stock. Model DB10 AR Rifle Action semi-auto Casing Burnt Bronze Finish Burnt Bronze Safety Yes Caliber .308 Winchester Capacity 20 Barrel Type 4140 Chrome-Moly Vanadium Barrel Length 16"