S&W K Frame Cylinder Stop & Spring Model 66-1 .357 Magnum Used 6681D

Genuine Smith & Wesson K Frame Cylinder Stop & Spring Assembly

OEM Part Number: 6681D
Condition: Used, fully functional
Fitment: Model 66-1 (.357 Magnum)
Frame Type: K Frame
Design: Old-style configuration

Product Details

This authentic Smith & Wesson cylinder stop and spring assembly is a direct-fit replacement component for Model 66-1 revolvers chambered in .357 Magnum. The cylinder stop (also called the cylinder latch) is a critical timing component that locks the cylinder in proper alignment with the barrel during firing.

Key Features:

• Genuine Smith & Wesson OEM part – not aftermarket
• Old-style design specific to early Model 66-1 production
• Includes both cylinder stop and factory spring
• Pre-inspected used condition – ready to install
• Ensures proper cylinder lockup and timing

Compatibility

This part is designed for Smith & Wesson K Frame Model 66-1 revolvers. While many K Frame internal parts interchange across models, verify fitment for your specific variant before ordering. Not compatible with rimfire K Frame models (17, 18, 48, 617, 648, K22).

Why Choose OEM Parts?

Factory Smith & Wesson components are manufactured to exact tolerances and heat-treated to precise specifications. Using genuine parts ensures reliable function, proper fit, and maintains the integrity of your firearm's timing and safety mechanisms.

Note: Installation by a qualified gunsmith is recommended for proper fitting and timing verification.