Smith & Wesson K Frame Model 18-3 Thumb Piece & Nut, Blue Steel, Plated Style, Used, Part# 18179A vintage revolver 4-inch threaded barrel for M&P

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

Style: Straight back design

Smith & Wesson Model 629 Unfluted Cylinder Assembly

Compatibility Scope

Smith & Wesson K Frame Model 18-3 Thumb Piece & Nut, Blue Steel, Plated Style, Used, Part# 18179A vintage revolver 4-inch threaded barrel for M&PSmith & 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