Smith & Wesson K Frame Cylinder Stop & Spring - Models 17 & 18 - Old Style - Used - .22 LR 1781C

Factory OEM Smith & Wesson K Frame Cylinder Stop & Spring

Part Number: 1781C
Compatibility: K Frame Models 17 & 18
Caliber: .22 LR (Rimfire)
Style: Old Style
Condition: Used
Frame Size: K Frame
Includes: Cylinder stop (bolt) and spring

This is an authentic Smith & Wesson factory cylinder stop (also called a bolt) with spring for K Frame Models 17 and 18 revolvers. The cylinder stop is a critical timing component that locks the cylinder in proper alignment with the barrel for safe firing.

Features:

• Genuine Smith & Wesson factory part
• Complete assembly with cylinder stop and spring
• Old-style configuration for early production models
• Used condition with functional operation
• Direct replacement for worn or damaged cylinder stops
• Essential for proper cylinder timing and lockup

Compatibility Note: The cylinder stop (bolt) and spring are interchangeable across all K Frame models, both rimfire and centerfire. This part will fit Models 10, 12, 13, 14, 15, 16, 17, 18, 19, 48, 64, 65, 66, 67, 617, and 648. The "old style" designation refers to earlier production variants.

Function: The cylinder stop engages notches in the cylinder to lock it in proper alignment with the barrel. Proper timing is critical for accuracy and safety - a worn or damaged cylinder stop can cause cylinder misalignment and dangerous malfunctions.

Installation: Professional gunsmith installation required. The cylinder stop requires internal disassembly and proper timing adjustment to ensure safe operation. Improper installation can result in cylinder misalignment and dangerous malfunctions.

How to Identify Your Smith & Wesson Model: Swing out the cylinder and check behind the yoke on the frame for the model number. Model numbers began in 1957-58. If you need assistance identifying your revolver or confirming compatibility, contact us with your serial number.

Questions? Contact us at sales@usagunsandgear.com or call 770-544-8075. We specialize in Smith & Wesson pistol and revolver parts - new, used, NOS, and refurbished.