Smith & Wesson K Frame Model 65 Bolt Spring & Plunger .357 Magnum Stainless Old Style Used - Part# 6545

Smith & Wesson K Frame Model 65 Bolt, Spring & Plunger — .357 Magnum

Part# 6545 | Stainless Steel | Old Style | Used OEM Factory Part

Part Details

• Manufacturer: Smith & Wesson (OEM Factory Part)
• Frame: K Frame
• Compatible Model: Model 65
• Caliber: .357 Magnum
• Part: Bolt, Spring & Plunger Assembly (Cylinder Stop Assembly)
• Material: Stainless Steel
• Style: Old Style
• Condition: Used

Compatibility

This bolt, spring, and plunger assembly — also known as the cylinder stop assembly — is designed for the Smith & Wesson K Frame Model 65 revolver chambered in .357 Magnum. The bolt is the component that locks the cylinder in precise alignment with the barrel at the moment of firing, making it a critical timing and safety assembly. Because .357 Magnum and .38 Special K Frame revolvers share the same frame and most internal parts, this assembly may also be compatible with other K Frame centerfire models. Verify old style vs. new style configuration before ordering. This part is not compatible with rimfire K Frame models (17, 18, 48, 617, 648, K22).

Finding Your Model Number

Swing out the cylinder and check behind the yoke on the frame for the model number. Model numbers began in 1957–58. If your revolver has no model number, contact us with your serial number and we can help identify the correct part.

Installation

Disassembly and reassembly of the revolver is required to replace this part. Installation by a qualified gunsmith is strongly recommended. Proper bolt fitting is critical to cylinder lockup and safe function. Factory replacement parts are manufactured to the exact same specifications, tolerances, and materials as the original.

Questions? Call or email us — we’re happy to confirm fitment before you order. We ship to U.S. addresses only.