Smith & Wesson J Frame Mainspring Stirrup
Part# 077740000 - Factory New OEM Part
Compatible Models:
Models 31, 32, 34, 36, 37, 38, 42, 49, 60, 63, 631, 632, 637, 638, 640, 642, 649
⚠️ Gunsmith Installation Required
Disassembly and assembly required to replace part. Some parts may require installation and fitting by a qualified gunsmith.
Features:
• Smith & Wesson factory replacement part
• Manufactured to exact OEM specifications and tolerances
• Same manufacturing materials as original parts
• Fits J-Frame revolvers
How to Determine Your Smith & Wesson Model Number:
Swing out the cylinder and check behind the yoke on the frame for the MODEL NUMBER. Model numbers began in 1957-58. If there is no model number, your revolver may be older than 1957-58. Contact us with your serial number and we can help identify the correct parts for your revolver.