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. So if you want a basic jack of all trades AR-15 to build off of, look for the Diamondback DB-15.