The 4-inch Model 57 was the duty-length configuration of the .41 Magnum N-frame, offered to agencies that preferred the shorter barrel for patrol carry. The premium adjustable-sight N-frame in a service barrel length represents the flagship .41 Magnum configuration. Type: Revolver Action: DA/SA Caliber: .41 Mag Capacity: 6 Year introduced: 1964, USA Weight: 43.5 oz Overall length: 9.5" Status: Discontinued Intended use: Duty, Hunting