The Steyr AUG A3 M1 is the current US-legal civilian version of the Austrian Army's standard service rifle since 1977. The A3 generation adds a full-length Picatinny rail replacing the original integral 1.5x scope. The M1 designation indicates NATO STANAG magazine compatibility — the standard AUG uses proprietary translucent magazines. The bullpup layout with the trigger group ahead of the magazine well was revolutionary in 1977 and remains influential. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 2012, Austria Weight: 90.4 oz Overall length: 28.15" Status: Active Military use: Yes Intended use: military, law_enforcement, sporting, collector