Smith & Wesson K Frame Main Spring Old Style Used 64141B hammer nose rivet How to identify your S&W

How to identify your S&W revolver model: Swing out the cylinder and check behind the yoke on the frame for the model number

or missing main spring or bushing

146" White Outline (Part# 191440000) — View listing

barrels are caliber and model-specific components

Smith & Wesson J Frame M&P 360 Cylinder PVD Black

Smith & Wesson K Frame Main Spring Old Style Used 64141B hammer nose rivet How to identify your S&WSmith & Wesson K Frame Main Spring Old Style Design Factory OEM main spring (also called mainspring or hammer spring) for Smith & Wesson K Frame revolvers. This critical component provides the power needed to drive the hammer forward and ignite the primer, ensuring reliable ignition with every trigger pull. Specifications: Frame: K Frame Design: Old Style Type: Coil main spring Condition: Used, factory original Compatible Models: Fits all K Frame