JB42A Smith & Wesson J Frame Model 42 Air Weight Safety Lever Used .38 Special model 10 Aftermarket hands may not meet

Aftermarket hands may not meet these exacting standards and can compromise timing

Note: This extractor works with the ejector rod

Quality used condition - inspected and tested

Precision Sight Component:

Known for its reliability

JB42A Smith & Wesson J Frame Model 42 Air Weight Safety Lever Used .38 Special model 10 Aftermarket hands may not meetJB42A 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 # .