Diamondback DB15 Obsidian Features The Diamondback DB15 Obsidian is chambered in 22 ARC a cartridge designed to deliver flat trajectories and extended effective range from an AR-15 platform. Its 18 inch barrel is machined from 4150 chrome moly steel with a 1:7.5 twist rate matched to the heavier high-ballistic-coefficient bullets 22 ARC is built around and a mid-length direct impingement gas system is tuned for reliable cycling across a range of factory loads. The bolt carrier group is shot-peened and magnetic particle inspected to mil-spec standards a quality control step that helps ensure long-term durability under sustained use. A forged 7075 T6 aluminum upper and lower receiver set provides the structural foundation for the rifle with the upper built on an A3 flattop pattern for compatibility with standard optics mounts. The 15 inch M-LOK handguard includes a full-length Picatinny top rail along with front QD sling mounts giving the shooter flexible options for mounting optics lights and slings. Furniture throughout the rifle including the B5 Systems P-Grip and Bravo stock is finished in Multicam Black complementing the Black and Olive Drab Green duo-tone Cerakote applied to the metal components. The DB15 feeds from a 26-round metal magazine giving the shooter extended capacity over standard 20 or 30-round configurations commonly seen on other calibers. Threaded 1/2x28 at the muzzle and shipped with a thread protector the rifle is ready to accept a muzzle device or suppressor as the owner sees fit. Manufactured entirely in the USA using Diamondback s own CNC facility the Diamondback DB15 Obsidian in 22 ARC is available for sale at GrabAGun for shooters who want a complete American-made long-range AR platform. Diamondback DB15 Obsidian Specifications Manufacturer: Diamondback Model: DB15 Obsidian Caliber: 22 ARC Capacity: 26+1 Action: Semi-Auto Barrel Length: 18 Barrel Description: 4150 Chrome Moly Threaded Twist Rate: 1:7.5 Gas System: Mid-Length Direct Impingement Thread Pattern: 1/2x28 Overall Length: 33 to 36 Receiver Material: Forged 7075 T6 Aluminum Handguard: 15 M-LOK Grip: B5 P-Grip Multicam Black Stock: B5 Bravo Multicam Black Magazine Type: 26-Round Metal AR Style Safety: 2-Position Thumb Safety Weight: 6.2 lbs Available At: GrabAGun