Bushmaster Assault Rifle: A Stoner-Inspired 70s Carbine
This video delves into the Bushmaster Assault Rifle, a 1970s carbine design attributed to Mack Gwinn, a former US Army Special Forces officer. Gwinn, inspired by the Stoner 63A, developed this long-stroke gas piston rifle featuring an AR-style bolt and fire control group. While the design was conceptually sound and relatively simple, the manufacturing quality was noted as crude. The rifle was initially produced by Gwinn Firearms before production shifted to Quality Parts, which then rebranded as Bushmaster Firearms. The video highlights that Bushmaster later became more renowned for its AR-15 production. Gwinn continued his contributions to the firearms industry with designs such as a QD barrel system for the Browning M2 and a modular barrel system for the AR platform.












