Smith & Wesson K Frame Model 66 Cylinder & Yoke Assembly - Recessed Stainless Steel .357 Magnum - Old Style - Used OEM Part 6678 k10-6u 1 Type-2 Reduced Power Mainspring

1 Type-2 Reduced Power Mainspring (hammer spring)

Engineered to exact OEM specifications and tolerances

The thumb piece is the external control that operates the cylinder latch on Smith & Wesson hand ejector revolvers

Style: Grooved trigger face

Designed specifically for Smith & Wesson X Frame Model 500 revolvers chambered in

Smith & Wesson K Frame Model 66 Cylinder & Yoke Assembly - Recessed Stainless Steel .357 Magnum - Old Style - Used OEM Part 6678 k10-6u 1 Type-2 Reduced Power MainspringThe Smith & Wesson K Frame Model 66 Cylinder & Yoke assembly is designed for use with a . 357 Magnum revolver. Made from stainless steel, this old style, used part is a durable and reliable choice for your firearm. Recessed Chambers. Part# 6678 We sell used, new & new old stock Smith & Wesson double action revolver parts. Shoot us an email or give us a call for all you S&W part needs! USA Guns And Gear Please call or email with any questions! How to