Diamondback DB15 Obsidian 5.56mm NATO 16in Black Hardcoat Anodize Semi Automatic Modern Sporting Rifle with Magpul CTR Stock and K2 Grip - 30+1 Rounds - The DB15 is designed with a focus on functionality and user comfort. The direct impingement operating system is known for its reliability and smooth operation. The rifle features an adjustable Magpul CTR stock and a black Magpul K2 grip, providing ergonomic support and a comfortable shooting experience. Optic ready, this rifle allows shooters to equip their preferred sights or scopes for enhanced targeting precision. The 15in M-LOK Anti-Rotation V4 handguards offer versatility for attaching accessories, and the ambidextrous safety enhances usability for both left and right-handed shooters. The muzzle brake helps to reduce recoil and muzzle rise, improving control and accuracy during rapid firing. The 1: 8in twist rate in the barrel is optimized for stabilizing a wide range of bullet weights, enhancing the rifle's versatility.