The DB15 from Diamondback firearms is a very simple to use and straight forward version of the AR-15. This particular comes with a nice 4150 Steel Barrel making the barrel a solid build with a nice shooting potential. The receivers are made with a nice 7075 T6 aluminum creating a solid base without adding excessive weight. The top of the receiver is equipped with picatinny rail for adding optics. The barrel is free floated inside of an aluminum M-Lok compatible rail allowing the addition of light, lasers, and vertical grips. The stock is collapsible allowing for easier storage or finding the most comfortable position for the shooter. | Diamondback DB15 5.56mm NATO 16" Black Rifle 10 Round