The Walther OSP (Olympia Sport Pistole) is a semi-automatic target pistol chambered in 22 Short, designed for the ISSF 25m Rapid Fire Pistol event. The predecessor to the GSP-C, the OSP was the dominant rapid fire competition pistol of the 1960s and won multiple Olympic medals during its competitive era. Type: Pistol Action: Semi-Automatic Caliber: 22 Short Capacity: 5 Year introduced: 1963, Germany Weight: 36 oz Overall length: 12" Status: Discontinued Intended use: ISSF Rapid Fire Pistol, Olympic, Target