Smith & Wesson L Frame Model 586 Mainspring - Used OEM 586141

This listing is for the mainspring only.

Genuine Smith & Wesson OEM mainspring for the L Frame Model 586 revolver chambered in .357 Magnum. The mainspring (hammer spring) provides the power for hammer operation, ensuring reliable primer ignition with every trigger pull. Used, original factory part in good working condition — maintains proper tension and spring characteristics.

Part Details:

• Part Number: 586141
• Frame: L Frame
• Type: Mainspring (Hammer Spring)
• Caliber: .357 Magnum
• Condition: Used OEM

Model Compatibility:

• Smith & Wesson L Frame Model 586 (.357 Magnum)

Important: Mainsprings can weaken over time, causing light primer strikes and misfires. Verify your model number before ordering. Professional installation by a qualified gunsmith is recommended.

We specialize in new, used, and new old stock Smith & Wesson double action revolver parts. Questions about compatibility? Shoot us an email or give us a call — we're happy to help.