Diamondback DB15 Features The Diamondback DB15 runs on direct impingement operation through a pistol-length gas system cycling a shot-peened and magnetic particle inspected mil spec 8620 carrier group for long-term reliability in 7.62x39mm. The 7 inch heavy barrel carries a 1 in 9.5 inch twist rate and a black nitride finish giving it the corrosion resistance and wear durability needed for a compact hard-running pistol. An A2 flash hider threaded 5/8x24 tames muzzle flash and helps control blast from the short barrel. The A3 flattop upper receiver provides a continuous Picatinny rail for mounting optics and accessories exactly where the shooter needs them. The Diamondback Carbon lower receiver is forged from 7075-T6 aluminum and finished in a black hardcoat anodize for a tough low maintenance exterior that stands up to range use and field carry alike. A 6 inch M-LOK handguard offers mounting space for lights lasers and grips without adding unnecessary bulk to the compact package. The Magpul MOE grip and padded buffer tube stock combine for a comfortable secure hold during rapid strings of fire and a standard trigger keeps the controls familiar to any AR shooter. At an overall length of 23 inches and 5.1 pounds the DB15 is a maneuverable reliable 7.62x39mm pistol for home defense range work and anyone wanting AR ergonomics in a stout hard hitting caliber. Diamondback DB15 Specifications Manufacturer: Diamondback Model: DB15 Caliber: 7.62x39mm Capacity: 28+1 Barrel Length: 7 Barrel Material: Chrome Moly Vanadium Barrel Finish: Black Nitride Twist Rate: 1:9.5 Operating System: Direct Impingement Gas System: Pistol-Length Muzzle Device: A2 Flash Hider Muzzle Thread Pitch: 5/8x24 Receiver Material: Aluminum Receiver Finish: Black Hardcoat Anodize Lower Receiver: Diamondback Carbon Handguard: 6 M-LOK Grip: Magpul MOE Stock: Padded Buffer Tube Sights: None Safety: Thumb Trigger: Standard Overall Length: 23 Weight: 5.1 lbs Available At: GrabAGun