The Model 48 K-22 Masterpiece Magnum is a K-frame target revolver chambered in .22 Winchester Magnum Rimfire. The 6-inch barrel and adjustable target sights made it the definitive .22 Magnum target revolver of its era. Type: Revolver Action: DA/SA Caliber: .22 Mag Capacity: 6 Year introduced: 1959, USA Weight: 42 oz Overall length: 11.1" Status: Discontinued Intended use: Target, Competition, Trail