4 Smith & Wesson K Frame Pre Model M&P Thumb Piece .32-20 ctg. sw9v while the spring detent plunger

while the spring detent plunger system allows for easy installation and secure mounting

Smith & Wesson J Frame

Light primer strikes or misfires

Used OEM Part - MBU42

Essential for smooth trigger pull and reliable hammer release

4 Smith & Wesson K Frame Pre Model M&P Thumb Piece .32-20 ctg. sw9v while the spring detent plunger4 Smith & Wesson K Frame Pre Model M&P Used Thumb Piece & Nut . 32 20 ctg. Serial # B125533 We sale used, new & new old stock Smith & Wesson double action revolver parts. Shoot us an email or give us a call for all your S&W Gun needs! USA Guns And Gear 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