Smith & Wesson K Frame Model 18-3 Thumb Piece & Nut, Blue Steel, Plated Style, Used, Part# 18179A vintage revolver Verify your firearm's barrel length

Verify your firearm's barrel length (4" minimum) and caliber (

4-inch threaded barrel for M&P 22 Compact pistol

Important Safety Note: Never attempt to install internal fire control components without proper training

Smith & Wesson Model 629 Unfluted Cylinder Assembly

Smith & Wesson K Frame Model 18-3 Thumb Piece & Nut, Blue Steel, Plated Style, Used, Part# 18179A vintage revolver Verify your firearm's barrel lengthSmith & Wesson K Frame Model 18 3 Thumb Piece & Nut A genuine used Smith & Wesson thumb piece and nut assembly pulled from a Model 18 3 revolver. The blue steel finish with plated style detailing makes this a correct replacement for restoring or repairing your K Frame . 22 LR revolver to factory spec. The thumb piece (cylinder release latch) is a critical control component having the right part matters. Compatibility: Smith & Wesson K Frame Model 18 3