Diamondback Firearms DB15 rifle made entirely in the USA. It uses a gas-impingement system and high quality CNC machined components. The DB15300 model features a melonite coated, 4140 chrome-moly, free-float barrel, forged 7075 T6 aluminum lower along with an A3 flattop upper receiver, no sights, and a carbine length gas system. This model has an A2 flash hider, Roger's Super-Stoc buttstock and buffer tube, A2 pistol grip, Diamondback 9.5" M-Loc handguard, and a black hardcoat anodized finish.