(DB175AB001) This is a new Diamondback DB15 AR-15 semi-automatic rifle chambered in 300 Blackout. It features a 16" barrel, optics ready receiver, 30+1 capacity, A2 flash hider, black Magpul MOE grip, 12" M-LOK handguard, black 7075-T6 aluminum receiver, manual safety, 6-position stock, 1:8 twist, and a weight of 6.3 lbs. It has a 4150 chrome moly black nitride barrel with 1/2"-28 tpi thread pattern. Comes with the original box, manual, and one magazine.