Smith & Wesson J Frame Model 34-1 Mainspring, Stirrup & Swivel .22 LR Used - Part #3425

Smith & Wesson J Frame Model 34-1 Mainspring, Stirrup & Swivel – .22 LR (Old Style, Used)

This listing includes the complete mainspring assembly for the S&W Model 34-1 J Frame revolver: the mainspring, stirrup, and swivel sold together as a set. These three components work in tandem to drive the hammer and are commonly replaced together during action work or when restoring a worn revolver.

Genuine Smith & Wesson factory parts, sourced from a used firearm and inspected for function. Correct old-style configuration for the Model 34-1 .22 LR rimfire revolver.

Compatibility

• Smith & Wesson J Frame – Model 34-1
• Caliber: .22 Long Rifle (rimfire)
• Old Style configuration

What’s Included

• Mainspring (hammer spring)
• Stirrup
• Swivel

Part Details

• Part #3425
• Condition: Used
• Genuine Smith & Wesson factory parts
• Manufactured to original S&W specifications and tolerances

Installation Note

Disassembly and reassembly of the revolver is required to replace these parts. Installation by a qualified gunsmith is recommended.

How to Identify Your S&W Model Number

Swing out the cylinder and check behind the yoke on the frame. Model numbers were introduced in 1957–58. If no model number is present, your revolver may pre-date that era — contact us with your serial number and we can help identify the correct part.

Questions? Email or call us — we’re here for all your Smith & Wesson parts needs.