When you need a lightweight carry revolver, you turn to Smith & Wesson’s Airweight Series. They are the original aluminum, small frame revolvers chambered in .38 S&W Special +P. The 442 features an enclosed hammer for a snag-free draw and a serrated ramp front sight for fast target acquisition. This aluminum alloy-framed 5 shot revolver weighs a mere pound, yet proves to be extremely accurate with a barrel length of less than 2 inches. Overall length: 6-5/16". Weight 15 oz. No internal lock.