Smith & Wesson K Model 17 Cylinder Stop & Spring - Factory OEM Part
Part Number: 1781B
Caliber: .22 Long Rifle
Condition: Used - Old Style
Includes: Cylinder Stop and Spring
Fits: Smith & Wesson K Frame Model 17 Revolvers
Product Details
This is a genuine Smith & Wesson factory cylinder stop and spring assembly for the K Model 17 revolver chambered in .22 Long Rifle. The cylinder stop (also called the cylinder bolt) is a critical internal component that locks the cylinder in proper alignment with the barrel during firing. The spring provides the tension necessary for proper engagement and release. This old style part is in good working condition and represents excellent value for revolver restoration or repair projects.
Key Features
- Genuine Smith & Wesson factory OEM parts
- Complete assembly includes cylinder stop and spring
- Manufactured to exact factory specifications and tolerances
- Old style configuration for vintage K Model 17 revolvers
- Critical component for cylinder timing and lockup
- Essential for safe and accurate firing
- Quality used condition - fully functional
Function and Importance
The cylinder stop is one of the most critical timing components in a revolver. It engages notches in the cylinder to lock it in perfect alignment with the barrel at the moment of firing. Proper cylinder stop function ensures accurate shot placement and prevents dangerous gas leakage. The spring must provide correct tension for reliable engagement and smooth trigger operation.
Installation Notes
Professional Installation Required: Cylinder stop installation requires precise fitting and timing verification to ensure safe and proper function. This internal component directly affects firearm safety, accuracy, and timing. Installation and fitting must be performed by a qualified gunsmith with proper tools and gauges. Improper installation or timing can result in dangerous malfunctions, poor accuracy, or cylinder binding.
Identifying Your Smith & Wesson Model
To determine your Smith & Wesson revolver model number, swing out the cylinder and check behind the yoke on the frame for the model number stamped into the metal. Model numbers began appearing in 1957-58. If your revolver has no model number, it may be pre-1957. Contact us with your serial number and we can help identify the correct parts for your firearm.
About Smith & Wesson K Frame Model 17 Revolvers
The K Frame is Smith & Wesson's medium-frame revolver platform, known for its perfect balance of size, weight, and shootability. The Model 17 is the .22 LR variant, prized by target shooters and plinkers for its accuracy, economy, and timeless design. The hand ejector design, which opens by swinging the cylinder to the left, has been a Smith & Wesson hallmark for over a century and represents classic American firearms engineering.
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