Diamondback DB1889K001 DB15 Knight's Armament 5.56 NATO 30+1 16" Phosphate Chrome Lined Threaded Barrel, Black Anodized Picatinny Rail Aluminum Receiver, Magpul CTR Synthetic Stock, Magpul MOE K2 Grip

The Knights Armament and Diamondback Firearms collaboration begins with Knights Armament providing their proprietary chambered, rifled and chrome lined cold hammer forged barrel blank. Diamondback Firearms then finishes the profiling of the barrel and performs final assembly, resulting in an end product with exceptional accuracy and excellent longevity.