Smith & Wesson K Model 17 Cylinder Assembly with Yoke - Factory OEM Part
Part Number: 1770
Caliber: .22 Long Rifle
Finish: Blue Steel
Condition: Used - Old Style
Barrel Compatibility: Fits 4" Barrels and Longer
Fits: Smith & Wesson K Frame Model 17 Revolvers
Product Details
This is a genuine Smith & Wesson factory cylinder assembly with yoke for the K Model 17 revolver chambered in .22 Long Rifle. This complete assembly includes the cylinder, yoke (crane), and all internal components necessary for proper function. The blue steel finish matches original factory specifications. This is a critical major component that houses the cartridges and rotates during firing. Designed for 4" barrel configurations and longer, this used part is in good working condition and represents excellent value for revolver restoration or repair projects.
Key Features
- Genuine Smith & Wesson factory OEM cylinder assembly
- Complete assembly includes cylinder, yoke (crane), and internal components
- Blue steel finish matches original factory specifications
- Manufactured to exact factory specifications and tolerances
- Old style configuration for vintage K Model 17 revolvers
- Compatible with 4" barrels and longer barrel lengths
- .22 LR chambering - 6-shot capacity
- Quality used condition - fully functional
What's Included
This cylinder assembly includes the complete rotating cylinder, yoke (also called the crane - the swing-out arm that holds the cylinder), extractor rod, and all associated internal components. This is a major assembly that contains multiple parts working together as a complete unit.
Installation Notes
Professional Installation Required: Cylinder assembly installation requires precise fitting, timing verification, and headspace checking to ensure safe and proper function. This is a critical component that directly affects firearm safety and performance. Installation and fitting must be performed by a qualified gunsmith with proper tools and gauges. Improper installation can result in dangerous malfunctions.
Barrel Length Compatibility
This cylinder assembly is designed for K Model 17 revolvers with 4" barrels and longer configurations (4", 6", 8-3/8"). The yoke length and ejector rod are matched to these barrel lengths. This assembly will not fit 2" or snub-nose configurations which require different yoke and ejector rod lengths.
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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