The square-butt 4-inch Model 19 was the standard police configuration. Its traditional grip geometry was familiar to officers trained on earlier S&W revolvers and accommodated a wide range of aftermarket grip panels and holster designs. Type: Revolver Action: Double-Action Caliber: .357 Magnum Capacity: 6 Year introduced: 1957, USA Weight: 36.5 oz Overall length: 9.5" Status: Discontinued Intended use: Duty, Service