The Steyr Arms Steyr Hahn M1912 is a austria-made semi-automatic pistol chambered in 9mm Steyr, introduced in 1912. Primary use: self_defense, sport. Type: Pistol Action: Semi-Automatic Caliber: 9mm Steyr Capacity: 10 Year introduced: 1912, Austria Weight: 26 oz Overall length: 7.1" Status: Discontinued Military use: Yes Intended use: self_defense, sport