Description Smith & Wesson's 637 1.875 inch .38 Stainless/Aluminum revolver is known for its compact size, light weight, reliability and superb performance. This J-frame Smith and Wesson has been very popular as a personal defense weapon for many years. It comes with a exposed hammer and offers 5-round bullet capacity. The gun's design features fixed-notch rear sight, integral front sight and black rubber grips for better handling while shooting. With an aluminum alloy frame and stainless steel cylinder, this revolver is an extremely light-weight single/double action gun. Firearms, trailers, and some accessories are only available for purchase in stores. Each location follows all BATF and individual state/county/city laws to insure the desired product is legal for sale. Any info provided online is subject to change, please go to your local store for more accurate information.