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 .357 Magnum and .38 S&W Special. - Full Top Strap and Barrel Serration - Ball-Detent Lock-Up - 2-Piece Barrel - Full-Length Extractor Rod - Caliber: .357 Magnum .38 S&W SPECIAL +P - Capacity: 6 - Barrel Length: 2.75 / 6.9 cm - Overall Length: 7.8 - Front Sight: Red Ramp - Rear Sight: White Outline Adjustable - Action: Single/Double Action - Grip: Synthetic - Weight: 33.5 oz / 949.7g - Cylinder Material: Stainless Steel - Barrel Material: Stainless Steel - Frame Material: Stainless Steel