J145 Smith and Wesson J Frame Model Pre 37 2" Barrel Blue Used 38Spl internal parts This thumb piece fits all

This thumb piece fits all Smith & Wesson J Frame revolvers with the new style cylinder latch

Pro Tip: This is the most popular Wolff spring pack for K/L/N frame revolvers

and all other parts are sold separately

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 This thumb piece fits allPart# 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