The Model 13 is a fixed-sight K-frame .357 Magnum built on the same frame as the adjustable-sight Model 19. The 4-inch heavy barrel version was a popular duty revolver valued for its simplicity and durability. Type: Revolver Action: DA/SA Caliber: .357 Mag Capacity: 6 Year introduced: 1974, USA Weight: 34 oz Overall length: 9.5" Status: Discontinued Intended use: Duty, Home Defense