Smith & Wesson J64031 S&W J Frame Revolver Model 640-3 .357 Mag Hammer and Trigger MIM Used Part 000000000

Smith & Wesson J Frame Model 640-3 Hammer & Trigger .357 Magnum MIM Used

$59.99
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Smith & Wesson J64031 S&W J Frame Revolver Model 640-3 .357 Mag Hammer and Trigger MIM Used Part 000000000
  • Smith & Wesson J64031 S&W J Frame Revolver Model 640-3 .357 Mag Hammer and Trigger MIM Used Part 000000000
  • Smith & Wesson J64031 S&W J Frame Revolver Model 640-3 .357 Mag Hammer and Trigger MIM Used Part 000000000
  • Smith & Wesson J64031 S&W J Frame Revolver Model 640-3 .357 Mag Hammer and Trigger MIM Used Part 000000000
  • Smith & Wesson J64031 S&W J Frame Revolver Model 640-3 .357 Mag Hammer and Trigger MIM Used Part 000000000
  • Smith & Wesson J64031 S&W J Frame Revolver Model 640-3 .357 Mag Hammer and Trigger MIM Used Part 000000000
  • Smith & Wesson J64031 S&W J Frame Revolver Model 640-3 .357 Mag Hammer and Trigger MIM Used Part 000000000
  • Smith & Wesson J64031 S&W J Frame Revolver Model 640-3 .357 Mag Hammer and Trigger MIM Used Part 000000000
  • Smith & Wesson J64031 S&W J Frame Revolver Model 640-3 .357 Mag Hammer and Trigger MIM Used Part 000000000
  • Smith & Wesson J64031 S&W J Frame Revolver Model 640-3 .357 Mag Hammer and Trigger MIM Used Part 000000000
  • Smith & Wesson J64031 S&W J Frame Revolver Model 640-3 .357 Mag Hammer and Trigger MIM Used Part 000000000
  • Smith & Wesson J64031 S&W J Frame Revolver Model 640-3 .357 Mag Hammer and Trigger MIM Used Part 000000000
  • Smith & Wesson J64031 S&W J Frame Revolver Model 640-3 .357 Mag Hammer and Trigger MIM Used Part 000000000
Smith & Wesson J Frame Model 640-3 Hammer & Trigger .357 Magnum MIM Used

Smith & Wesson J Frame Model 640-3 Hammer & Trigger .357 Magnum MIM Used

$59.99

Smith & Wesson J Frame Model 640-3 Hammer & Trigger .357 Magnum MIM — Used (Part# J64031)

This listing is for one used Smith & Wesson J Frame Model 640-3 hammer and trigger assembly chambered for .357 Magnum. These are MIM (Metal Injection Molded) OEM factory parts in used condition, removed from a functioning firearm. The Model 640 Centennial features a concealed internal hammer for snag-free carry.

⚠️ Compatibility note: This assembly is specifically for the Model 640-3. Verify your exact dash number before ordering, as MIM and non-MIM parts are not interchangeable across dash variants.

⚠️ Professional installation recommended. Disassembly and reassembly of the firearm is required to replace this part. We recommend having a qualified gunsmith perform this work.

Compatibility

Model Dash Frame Caliber Construction Notes
Model 640 Centennial -3 J Frame .357 Mag / .38 Special MIM Confirmed fit

Not compatible with Model 640, 640-1, or 640-2. Verify your dash number before ordering. Contact us if unsure.

Part Details

  • Brand: Smith & Wesson
  • Part Number: J64031
  • Part Type: Hammer & Trigger
  • Construction: MIM (Metal Injection Molded)
  • Frame Size: J Frame
  • Caliber: .357 Magnum / .38 Special
  • Condition: Used (OEM)

Questions? Call or email us — we're happy to help confirm compatibility for your specific revolver.

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