The Diamondback Firearms DB15 is a high-quality semi-automatic rifle designed for versatility and performance.        Manufacturer Diamondback Firearms  Manufacturer Part #DB171AK211   Model DB15Action Semi-automatic Type ARCaliber 556NATO Caliber 223 Remington Barrel Length16″Color Smoked Bronze Grips Polymer Accessories  1 Mag Capacity 30 Rounds  Description MLOK Stock Polymer