The Smith & Wesson J-Frame has become the most popular small frame personal defense revolver on the market. With decades of reliable performance to its credit, the J-frame line offers models capable of firing .22 LR, .22 Magnum, .38 S&W Special and the more powerful .357 Magnum loads. Smith & Wesson offers these revolvers from our production, M&P, Pro Series, and Classics lines in three diverse hammer designs; internal, exposed and shrouded.
The Model 637 is a variation of the Model 37 Chiefs Special Airweight that integrates the time-tested features of the original with modern advancements. This ultra-light revolver is a favorite back-up and concealed carry firearm.
Specifications:

Weight: 15 oz.
Overall Length: 6.31″
Addl Info: Airweight Frame