1977B Smith & Wesson K Frame Model 19 Used Cylinder Recessed w/Yoke .357 Magnum .300 trigger which resets the trigger to

which resets the trigger to its forward position

This trigger is specifically designed for Smith & Wesson K Frame Model 13 revolvers chambered in

500 S&W Magnum cartridge

657189C Smith & Wesson N Frame Model 657 Trigger

Internal mechanism component

1977B Smith & Wesson K Frame Model 19 Used Cylinder Recessed w/Yoke .357 Magnum .300 trigger which resets the trigger to1977B Smith & Wesson K Frame Model 19 Used Cylinder Recessed w Yoke . 357 Magnum Blue Steel (Old Style) Used Part Please call or email with any questions! Email or call us for your Smith and Wesson gun part needs 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