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Smith & Wesson revolver main spring with a label on a white background

Smith & Wesson K Frame Model 66-1 Combat Magnum Main Spring - Old Style Used - 66141C

$6.99

Smith & Wesson K Frame Model 66-1 Main Spring 

This is an old style main spring for the Smith & Wesson K Frame Model 66-1 Combat Magnum revolver chambered in .357 Magnum. This is a genuine factory used part in good working condition.

Specifications:

  • Frame: K Frame
  • Model: 66-1 (dash 1)
  • Caliber: .357 Magnum (centerfire)
  • Part Type: Main Spring (Hammer Spring)
  • Style: Old Style
  • Condition: Used
  • Part Number: 66141C

Compatibility:

This main spring is compatible with K Frame Model 66-1 revolvers. All K Frame models except rimfire models (17, 18, 48, 617, 648, K22) use centerfire hammers and main springs. The Model 66 is a centerfire .357 Magnum revolver.

Note: Always verify part compatibility with your specific firearm before installation. Professional gunsmith installation recommended.

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