JB42A Smith & Wesson J Frame Model 42 Air Weight Safety Lever Used .38 Special model 10 Models: 30

Models: 30

Precision Sight Component:

Known for its reliability

Note: This extractor works with the ejector rod

JB42A Smith & Wesson J Frame Model 42 Air Weight Safety Lever Used .38 Special model 10 Models: 30JB42A Smith & Wesson J Frame Model 42 Air Weight Safety Lever 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 # .