K939 Smith & Wesson K Frame Model 66 Internal Parts .357 Magnum other Trigger Return Sping

Trigger Return Sping

Old Style  Used Part

3rd Generation 10mm Models:

contact us with your serial number for assistance

K939 Smith & Wesson K Frame Model 66 Internal Parts .357 Magnum other Trigger Return SpingK939 Smith & Wesson K Frame Model 66 Internal Parts . 357 Magnum Please call or email with any questions! We sell Smith & Wesson pistol and revolver used, new & new old stock refurbished & new parts. Shoot us an email or give us a call for all your S&W Gun needs USA Guns And Gear 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