Diamondback DB15 Carbon Series 5.56mm NATO 16in Black Hardcoat Anodize Semi Automatic Modern Sporting Rifle - 30+1 Rounds - The Diamondback DB15 features a threaded barrel with an A2 flash hider muzzle device; A3 flattop forged 7075 T-6 aluminum T-Marked upper and a DB15 carbon lower; Magpul MOE grip; 15" M-LOK rail with texture pads; Picatinny rail; front and rear QD and hand stop. Includes 30rd Magpul Gen2 M2 PMAG.