Diamondback DB15 Obsidian Features The Diamondback DB15 Obsidian uses a U.S. military-proven gas-impingement operating system paired with a medium taper threaded barrel that balances weight and heat management for repeated strings of fire. The DB Obsidian brake reduces felt recoil and muzzle rise helping the shooter stay on target for faster follow-up shots at distance. A Mil-Spec trigger and Battlearms ambidextrous safety give the rifle familiar reliable controls that any AR-pattern shooter can pick up immediately. The 5/8x24 threaded muzzle accepts a wide range of aftermarket brakes comps and suppressors for shooters who want to further tune recoil and sound. An M-LOK handguard provides a slim modular platform for mounting lights lasers and bipods without added bulk while the Magpul CTR stock adjusts for length of pull to fit shooters of different statures and body armor setups. The Magpul MOE K2 grip gives a more vertical ergonomic hold that reduces wrist strain during extended range sessions. Diamondback s CNC machining and U.S. manufacturing bring genuine build quality to the DB15 line at a price point that undercuts many competing 6mm ARC rifles. The Diamondback DB15 Obsidian suits precision-minded shooters who want a capable American-made AR-15 in a purpose-built long-range chambering. Diamondback DB15 Obsidian Specifications Brand: Diamondback Model: DB15 Obsidian Action: Semi-Auto Caliber: 6mm ARC Capacity: 26+1 Barrel Length: 18 Barrel Description: Medium Taper Threaded Barrel Material: Chrome Moly Vanadium Twist Rate: 1:7.5 Muzzle Device: DB Obsidian Brake Thread Pattern: 5/8x24 Receiver: Picatinny Rail Aluminum Handguard: M-LOK Stock: Magpul CTR Grip: Magpul MOE K2 Trigger: Mil-Spec Weight: 6.8 lbs Available At: GrabAGun