Diamondback DB15 rifle features a carbine-length, medium 4150 ChromeMoly barrel, mid-length gas system with pinned gas block, and a shot-peened Mil-Spec 8620 bolt carrier. It utilizes 7075-T6 aluminum receivers, 15" M-Lok anti-rotation handguard, Magpul MOE grip and a Magpul Carbine stock.