J42107 Smith & Wesson J Frame Model 42 Air Weight Hammer Used .38 Special l586n Fire Starter Kit

Fire Starter Kit

Part number: 038110000

10-pack - ten loading guides included

The Model 637 is part of Smith & Wesson's J Frame Airweight family

J42107 Smith & Wesson J Frame Model 42 Air Weight Hammer Used .38 Special l586n Fire Starter KitJ42107 Smith & Wesson J Frame Model 42 Air Weight Hammer Used . 38 Special Please call or email with any questions! How to determine the model number of your Smith & Wesson Revolver. Swing out the cylinder , check behind the yoke on the frame for a MODEL NUMBER. Model numbers began in 1957 58. So if there is no model number then your revolver may be older than 1957 58. In this case we can possibly still find the part you need with the serial # . If