Smith & Wesson Trigger Assembly - Models 639, 645, 649, 669 - Factory New (Part #103140000) adjustable sight The cylinder stop is a

The cylinder stop is a critical timing component that locks the cylinder in proper alignment with the barrel for each shot

As part of complete pistol restoration

A qualified gunsmith should install this part and verify proper cylinder timing and lockup to ensure safe operation

Verify your revolver uses the new-style design before ordering

Smith & Wesson Trigger Assembly - Models 639, 645, 649, 669 - Factory New (Part #103140000) adjustable sight The cylinder stop is aFactory New Trigger Assembly for Multiple S&W Models This genuine Smith & Wesson factory new trigger assembly (Part #103140000) is compatible with multiple popular S&W pistol models including the 639, 645, 649, and 669. Whether you're performing a repair, restoration, or upgrade, this OEM component delivers the reliable performance and quality that Smith & Wesson is known for. Key Benefits Factory New Condition: Brand new Smith & Wesson OEM part never