Smith & Wesson K Frame Model 10 Bolt, Spring & Plunger .38 Special Used, Part 1045A

Smith & Wesson K-Frame Model 10 Bolt, Spring & Plunger Assembly

Used OEM factory assembly for Smith & Wesson K-Frame Model 10 .38 Special revolvers. Includes the bolt (cylinder stop), spring, and plunger. Part number 1045A.

Part Details

• Part number: 1045A
• Brand: Smith & Wesson
• Frame: K Frame (Medium Frame)
• Model: 10
• Caliber: .38 Special
• Component: Bolt, spring, and plunger assembly
• Style: Old style
• Condition: Used OEM

Function and Fitment

The bolt, also called the cylinder stop, helps lock the cylinder in alignment with the barrel during the firing cycle. This assembly is intended for K-Frame Model 10 .38 Special revolvers with matching old-style geometry. Verify the exact dash number, bolt shape, spring and plunger configuration, and other original-part details before ordering.

Do not assume fitment across other K-Frame models or variants without confirming compatibility with a qualified gunsmith.

Installation

Disassembly, reassembly, and possible fitting are required. Professional gunsmith installation is recommended. After installation, verify cylinder lockup, timing, trigger return, and safe function. This listing includes the bolt, spring, and plunger only; firearm not included.