The Steyr AUG A3 M1 223 is a highly versatile bullpup rifle favored by military and law enforcement. With its compact design, advanced optics, and modular features, the AUG offers unparalleled performance in both close-quarters and long-range engagements. A semi-automatic, gas-piston bullpup rifle distributed by Steyr Arms USA. Chambered primarily in 223, its bullpup configuration places the action behind the trigger, achieving an overall length of just 28.15 inches while retaining a 16-inch barrel.