J145 Smith and Wesson J Frame Model Pre 37 2" Barrel Blue Used 38Spl internal parts Part Number: K831

Part Number: K831

J38 Smith & Wesson Used J Frame Model 642

ensuring proper timing and smooth operation

This is the split bottom thumb piece New Old Stock

8" x 10" Zip Lock Bag

J145 Smith and Wesson J Frame Model Pre 37 2" Barrel Blue Used 38Spl internal parts Part Number: K831Part# J145 Smith and Wesson J Frame Model Pre 37 2" Barrel Blue Used 38Spl Revolver Pistol Gun Part. 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