(DB1717K002) This is a new Diamondback DB15 Semi-automatic AR-15 rifle chambered in 223/5.56 Nato. This rifle features a 16" barrel, an optics ready receiver, black nitride finish, A2 flash hider, 1:8 twist, 10" Free-Float quad rail, manual thumb safety, 30+1 capacity, 6-position stock, and a weight of 6.4 lbs. The barrel is threaded 1/2"-28 tpi. Diamondback Firearms are made entirely in the USA. It uses a gas-impingement system and high quality CNC machined components. Comes with the original box, manual, and one magazine.