The Excel Arms MP-17 .17 HMR Pistol is a usa-made semi-automatic pistol chambered in .17 HMR, introduced in 2004. Primary use: sport, self_defense. Type: Pistol Action: Semi-Automatic Caliber: .17 HMR Capacity: 10 Year introduced: 2004, USA Weight: 26 oz Overall length: 7.4" Status: Active Intended use: sport, self_defense