The 4" Model 48 is the compact field configuration of the K-22 MRF, offering better portability for backpacking and trail use while retaining the adjustable sights of the Masterpiece series. Type: Revolver Action: Double-Action Caliber: 22 WMR Capacity: 6 Year introduced: 1959, USA Weight: 36 oz Overall length: 9" Status: Discontinued Intended use: Field / Trail