Smith & Wesson K Frame Bolt Assembly - Model 18 - Used - .22 LR 134

Factory OEM Smith & Wesson K Frame Bolt Assembly

Part Number: 134
Compatibility: K Frame Model 18
Caliber: .22 LR (Rimfire)
Condition: Used
Frame Size: K Frame
Type: Complete bolt assembly

This is an authentic Smith & Wesson factory bolt assembly (also called a cylinder stop) for K Frame Model 18 revolvers. The bolt 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 bolt assembly ready to install
• Used condition with functional operation
• Direct replacement for worn or damaged bolts
• Essential for proper cylinder timing and lockup

Compatibility Note: The bolt assembly (cylinder stop) is 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.

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

Installation: Professional gunsmith installation required. The bolt assembly 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.