The Diamondback Firearms DB15 5.56 NATO semi-automatic rifle is an excellent intermediate-level AR for defense, hunting and recreational use. It’s built from the ground up right here in the USA. Featuring forged 7075-T6 aluminum receivers, a 16-inch 4140 chrome-moly free-float barrel and a magnetic-particle inspected (MPI), shot-peened bolt carrier, the DB15 is built to last. With a 12-inch Diamondback aluminum M-Lok handguard and a six-position collapsible stock, this rifle is modular and functional, ready to take on anything you can put it through. Regardless if this is your first or one-hundredth AR, you will be impressed with the fit, finish and function of the DB15. Pick up a Diamondback semi-automatic AR-15 rifle today and see why Diamondback Firearms is considered a great choice in the industry.