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A used metal part set for a Smith & Wesson revolver, displayed on a white surface with a white label card. The parts include a black cylindrical component and two small dark metal pins.

Smith & Wesson J Frame Model 51 Revolver Firing Pin Bushing Spring .22 WMR Old Style Used OEM - 51106

$26.99

This listing is for one (1) used Smith & Wesson J Frame Model 51 revolver firing pin, bushing, and spring assembly, .22 WMR, old style.

Part Details

  • Part Number: 51106
  • Condition: Used (OEM) — surplus
  • Caliber: .22 WMR (.22 Magnum) — Rimfire
  • Style: Old Style
  • Frame: J Frame
  • Includes: Firing pin, bushing, and spring
  • Part Type: Firing Pin Assembly
  • Function: Strikes the rim of the .22 WMR cartridge to initiate ignition; a worn or damaged firing pin causes misfires and failure to fire
  • Fits: See compatibility chart below

⚠️ Rimfire-Specific: This firing pin is designed specifically for the Model 51 (.22 WMR rimfire). It is NOT interchangeable with centerfire J Frame firing pins. Verify your model before ordering.

Model Compatibility

Model Caliber Frame Style Notes
Model 51 .22 WMR (.22 Magnum) J Frame Old Style Rimfire only — NOT compatible with centerfire J Frame models

Verify your model and dash number before ordering. Contact us if you are unsure of compatibility.

Installation Note

Firing pin replacement requires action disassembly by a qualified gunsmith. Proper firing pin protrusion, primer strike, and reliable ignition must be verified after installation. Factory replacement parts are manufactured to original S&W specifications and tolerances.

We stock OEM Smith & Wesson revolver and pistol parts — new, new old stock, and used. Questions? Email or call us for all your S&W needs.

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