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Smith & Wesson Smith & Wesson Revolver K Frame Model 19 Thumb Piece & Nut Used Part 19179 Part 000000000

Smith & Wesson K Frame Model 19 Thumb Piece & Nut Blue Old Style Used .357 Magnum Part 19179

$22.99

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.

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