The standard 4" fixed-sight Model 58 Military & Police .41 Magnum is the definitive configuration of S&W's failed law enforcement .41 Magnum initiative. The 4" service-length barrel was chosen specifically to appeal to police departments evaluating the new cartridge. Type: Revolver Action: Double-Action Caliber: 41 Magnum Capacity: 6 Year introduced: 1964, USA Weight: 41 oz Overall length: 9.5" Status: Discontinued Intended use: Service / Law Enforcement