The Steyr AUG A3 M1 in black finish is the current US-market standard configuration of the AUG bullpup, with a 16-inch barrel and NATO STANAG rail for optics. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 2012, Austria Weight: 90 oz Overall length: 28.2" Status: Active Intended use: Military, Law Enforcement, Sport