The Smith & Wesson Model 41 is a usa-made semi-automatic pistol chambered in .22 LR, introduced in 1957. Primary use: self_defense, sport. Type: Pistol Action: Semi-Automatic Caliber: .22 LR Capacity: 10 Year introduced: 1957, USA Weight: 22 oz Overall length: 7" Status: Active Intended use: self_defense, sport