Smith & Wesson K Frame Model 66-4 .357 Magnum Hammer .375" Spur Stainless Steel Used Part 66113D

Smith & Wesson Model 66-4 Hammer – .375" Spur, Stainless Steel

Keep your Model 66 running like it left the factory. This is a genuine used Smith & Wesson hammer pulled from a Model 66-4 Combat Magnum revolver. It features the classic .375" wide target-style spur in stainless steel — the old-style configuration that collectors and gunsmiths prefer for its positive thumb cocking and clean single-action break.

Part Details

• Part Number: 66113D
• Frame: K Frame
• Compatible Model: Model 66-4 (.357 Magnum)
• Spur Width: .375"
• Material: Stainless Steel
• Style: Old Style (pre-MIM)
• Condition: Used – mechanically sound, normal wear

Compatibility Note

This hammer is designed for the K Frame Model 66 (.357 Magnum / .38 Special). It is a centerfire hammer and is not compatible with rimfire K Frame models (17, 18, 48, 617, 648). Verify your model and generation before ordering. If you have fitment questions, contact us before purchasing.

Condition

Used part in good working condition. Shows normal handling and holster wear consistent with a service revolver. No cracks, chips, or damage to the spur or hammer nose.