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, Magpul MOE Carbine Stock, MOE pistol grip, Diamondback 12" M-Lok handguard, and a burnt bronze finish.