The KRISS USA Defiance 9mm is a usa-made semi-automatic carbine chambered in 9mm Luger, introduced in 2009. Primary use: self_defense, sport. Type: Carbine Action: Semi-Automatic Caliber: 9mm Luger Capacity: 17 Year introduced: 2009, USA Weight: 96 oz Overall length: 36" Status: Active Intended use: self_defense, sport