Authentic Smith & Wesson K Frame Thumb Piece & Nut
Part Number: MPC10 | Condition: Used OEM | Finish: Blue Steel
Compatibility Scope
This factory original thumb piece and nut assembly is specifically engineered for:
- Model: Smith & Wesson K Frame Military & Police 1st Model
- Serial Range: Fits Serial #3312 and similar 1st generation K frames
- Configuration: 4-screw sideplate design
- Caliber: .38 Colt cartridge chambering
- Frame Size: K Frame (medium frame revolvers)
Note: This is an old-style configuration specific to early M&P production. Verify your revolver's serial number and screw count before ordering.
Key Differentiators
- Factory OEM Part: Genuine Smith & Wesson component, not an aftermarket reproduction
- Historical Authenticity: Period-correct blue steel finish maintains collector value
- Complete Assembly: Includes both thumb piece and retaining nut for proper installation
- Rare Configuration: 1st Model 4-screw parts are increasingly difficult to source
- Verified Fit: Pulled from Serial #3312, ensuring dimensional accuracy for early K frames
Who This Part Is For
This component is ideal for:
- Collectors restoring early Smith & Wesson K Frame revolvers to factory specification
- Gunsmiths servicing vintage M&P revolvers with worn or damaged thumb pieces
- Enthusiasts maintaining period-correct configurations on historical firearms
- Owners of 1st Model K frames seeking authentic replacement parts
Condition & Specifications
Condition: Used - shows honest wear consistent with age and service. Blue finish exhibits patina typical of vintage components. Mechanically sound with full functionality.
What's Included: Thumb piece and retaining nut (complete assembly)
Installation: Requires basic gunsmithing knowledge. Professional installation recommended if unfamiliar with revolver disassembly.
Why Choose USA Guns And Gear
We specialize in authentic Smith & Wesson factory parts with detailed compatibility information. Every component is inspected and accurately described to ensure you receive exactly what your restoration requires. Our part numbers match factory specifications for confident ordering.