High Standard's suppressed .22 LR pistol developed for the OSS during WWII. Fired supersonic and subsonic .22 LR ammunition with an integral suppressor, used for clandestine operations. Type: Pistol Action: Semi-Automatic Caliber: .22 LR Capacity: 10 Year introduced: 1944, USA Weight: 33.5 oz Overall length: 12.5" Status: Discontinued Military use: Yes Intended use: Military Service, Collecting