The Ruger SR9 is a usa-made semi-automatic pistol chambered in 9mm Luger, introduced in 2007. Primary use: self_defense, sport. Type: Pistol Action: Semi-Automatic Caliber: 9mm Luger Capacity: 15 Year introduced: 2007, USA Weight: 25 oz Overall length: 7.5" Status: Discontinued Intended use: self_defense, sport