The AUG Z was the original semi-automatic civilian export version of the AUG, featuring a fixed semi-automatic trigger group and a thumbhole stock to comply with US import requirements post-1989. The Z configuration was the primary import version available to American civilians before the 1989 import ban. Mechanically equivalent to the military A1 in all respects except the trigger group. Type: Rifle Action: Semi-Automatic Caliber: 5.56 NATO Capacity: 30 Year introduced: 1988, Austria Weight: 8.5 oz Overall length: 31.1" Status: Discontinued Intended use: Tactical / Defense, Home Defense