Action: SA/DA – Caliber: .22 LR – Capacity: 10 – Finish: Satin Stainless – Material: Steel – Grips: Synthetic – Sights: Partridge/Adjustable – Barrel Length: 4 – Overall Length: 9.13 – Weight: 38.9 oz – The K-Frame revolver is one of the most important innovations in Smith & Wesson history and was built specifically to handle the .38 S&W Special cartridge. Since its introduction in 1899 the K-Frame has been a favorite for military and police professionals as well as target shooters and enthusiasts. Today’s K-Frame is available in .22 LR and .38 S&W Special.