Smith & Wesson K Frame M&P Model K-38, Pre Model 10 Thumb Piece 5 Screw Revolver - V61 n627n J-Frame Specific: Designed specifically for

J-Frame Specific: Designed specifically for small-frame S&W revolvers

Factory new OEM firing pin bushing specifically designed for the Smith & Wesson J Frame Model 940 9mm revolver

500 S&W Magnum) - 2003-present (largest production revolver)

not just the trigger itself

Allows co-witnessing of iron sights with red dot optics

Smith & Wesson K Frame M&P Model K-38, Pre Model 10 Thumb Piece 5 Screw Revolver - V61 n627n J-Frame Specific: Designed specifically forSmith & Wesson K Frame Revolver Thumb Piece Pre Model 10, Military & Police, Victory Model, 200 Lend Lease 4 & 5 Screw Revolvers K 22 K 32 K 38 & others This is the split bottom thumb piece New Old Stock!! 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