Smith & Wesson K Frame Model 19 Thumb Piece & Nut Blue Old Style Used .357 Magnum Part 19179
This listing is for the Smith & Wesson K Frame Model 19 Thumb Piece & Nut, Blue Steel, Old Style (Used OEM Part 19179) only.
Used factory original Smith & Wesson thumb piece and nut assembly for the K Frame Model 19 (.357 Combat Magnum) revolver, blued finish, old style configuration. The thumb piece (cylinder release latch) and nut allow the cylinder to swing out for loading and unloading — a worn, bent, or broken thumb piece causes the cylinder to fail to release properly or become loose during use. Removed from a functioning revolver and inspected prior to sale.
Part Details
- Part Number: 19179
- Includes: Thumb Piece & Nut
- Condition: Used — inspected and functional
- Manufacturer: Smith & Wesson
- Finish: Blue Steel
- Style: Old Style
- Frame: K Frame
- Caliber: .357 Magnum
Model Compatibility
| Make | Frame | Model | Caliber | Finish | Compatible |
|---|---|---|---|---|---|
| Smith & Wesson | K Frame | Model 19 (.357 Combat Magnum) — all dash revisions | .357 Magnum | Blue | ✓ Yes — old style |
| Smith & Wesson | K Frame | Other blue K Frame models (10, 13, 14, 15) | .38 Spl / .357 Mag | Blue | Verify before ordering |
| Smith & Wesson | K Frame | Model 66 (stainless) | .357 Magnum | Stainless | ✗ No — stainless uses different finish thumb piece |
| Smith & Wesson | J / L / N / X Frame | All | Various | Any | ✗ No — different frame size |
Verify your model, dash number, and finish (blue vs. stainless) before ordering — thumb pieces are finish-specific. Contact us with fitment questions.
Installation Note
Gunsmith Recommended: Thumb piece replacement requires side plate removal and action disassembly. Installation and function testing by a qualified gunsmith is recommended.
We only ship to addresses within the United States.