Smith & Wesson K Frame Model 64-3 Thumb Piece & Nut Stainless Steel - Old Style Used 64177D Barrel Sleeve Spacer The hammer assembly is a

The hammer assembly is a critical component that provides the energy needed to strike the firing pin and ignite the primer

Verify your revolver has a round butt grip frame before ordering

Why Upgrade

Factory OEM Part #392210000

Function testing mandatory after installation

Smith & Wesson K Frame Model 64-3 Thumb Piece & Nut Stainless Steel - Old Style Used 64177D Barrel Sleeve Spacer The hammer assembly is aSmith & Wesson K Frame Model 64 3 Thumb Piece & Nut Stainless Steel Factory OEM thumb piece and nut assembly for the Smith & Wesson Model 64 3 revolver. This old style stainless steel component controls cylinder release and is essential for proper revolver operation. Specifications: Part Number: 64177D Frame: K Frame Model: 64 3 Caliber: . 38 Special Material: Stainless Steel Condition: Used Old Style Finish: Stainless Compatible Models: This thumb