Smith & Wesson K Frame Main Spring Old Style Used Part 64141A X Frame The thumbpiece is the lever

The thumbpiece is the lever you press to release the cylinder for loading and unloading

Smooth Trigger:

This complete kit contains 4 precision-engineered Wolff springs:

When to Replace the Hand:

Smith & Wesson K Frame Main Spring Old Style Used Part 64141A X Frame The thumbpiece is the leverSmith & Wesson K Frame Main Spring Old Style Used Part #64141A Factory OEM main spring (hammer spring) for Smith & Wesson K Frame revolvers, old style design. This is the coil spring that drives the hammer forward to ignite the primer a critical component for reliable ignition and consistent trigger pull. Genuine S&W factory part in used condition. This listing is for the main spring only. Condition: Used, factory original. Specifications Part Number: