The S&W Model 58 is the fixed-sight service configuration of the .41 Magnum N-frame, intended as a law enforcement duty revolver but largely rejected by police agencies who stayed with .357 Magnum. Type: Revolver Action: DA/SA Caliber: .41 Mag Capacity: 6 Year introduced: 1964, USA Weight: 44 oz Overall length: 9.5" Status: Discontinued Intended use: Law Enforcement, Collector