Smith & Wesson J-Frame revolver is designed to fire a full power round and is as simple and easy to use as it is reliable. The Model 442 is a variation of the Model 42 Centennial Airweight which integrates the time-tested features of the original with modern advancements. This lightweight, enclosed hammer revolver is a favorite back-up and concealed carry firearm. This model has an matte black aluminum alloy frame, carbon steel cylinder, black stainless steel barrel, integral front and fixed rear sights, and an enclosed hammer. It also so has a no internal lock.