M&P R8, Caliber: .357 Magnum, .38 S&W Special +P, Capacity: 8 Rounds, Barrel Length: 5" / 12.7 cm, Front Sight: Interchangeable, Rear Sight: Adjustable VNotch, Grip: Synthetic, Frame: Large - Exposed Hammer, Action: Single/Double Action, Finish: Black Matte, Overall Length: 10.5" / 26.7 cm, Material: Scandium Alloy Frame, Stainless Steel Cylinder, Weight Empty: 36.3 oz / 1,029.1 g