S&W K Frame Model 10 Thumb Piece & Nut Blue Steel .38 Special, Part 10179A

Smith & Wesson K-Frame Model 10 Thumb Piece and Nut

Used OEM factory thumb piece and nut for Smith & Wesson K-Frame Model 10 .38 Special revolvers. This blue-steel, old-style cylinder-release assembly helps the cylinder swing out and latch correctly. Part number 10179A.

Part Details

• Part number: 10179A
• Brand: Smith & Wesson
• Frame: K Frame (Medium Frame)
• Model: 10
• Caliber: .38 Special
• Component: Thumb piece and nut
• Finish: Blue steel
• Style: Old style
• Condition: Used OEM

Fitment

Intended for Smith & Wesson K-Frame Model 10 .38 Special revolvers with matching old-style thumb-piece and cylinder-release geometry. Verify the exact dash number, thumb-piece profile, nut design, and original-part configuration before ordering.

Do not assume fitment across other K-Frame models or variants without confirming compatibility with a qualified gunsmith.

Installation

Disassembly and reassembly are required, and fitting may be necessary. Professional gunsmith installation is recommended. After installation, verify cylinder release, cylinder swing-out, latch operation, and safe function. This listing includes the thumb piece and nut only; firearm not included.