Diamondback DB15 Obsidian 5.56mm NATO 16in Brown Cerakote Semi Automatic Modern Sporting Rifle - 30+1 Rounds - The Diamondback Obsidian Series is a fusion of precision engineering and tactical versatility. The Mid-Length Gas System, paired with a Pinned Gas Block, Enhances Reliability and Reduces Recoil, providing a Smoother Shooting experience. Outfitted with Premium Magpul furniture, including the ACS-L Stock and MOE-K2+ Grip, the DB15 Obsidian offers Superior Ergonomics and Control for both Dynamic and Precision shooting. Weighing approximately 6.6lbs and constructed with forged 7075-T6 Aluminum Receivers, this Rifle Balances Durability with a Lightweight profile. Whether you're a seasoned shooter or new to the AR platform, the DB15 Obsidian Series stands ready to exceed expectations in performance and reliability. Threaded Barrel: 1/2 x 28 Obsidian Muzzle Brake 15in M-LOK Anti-Rotation Rail RECEIVER: Forged 7075 T-6 Aluminum Magpul MOE K2+ Grip