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Smith & Wesson Smith & Wesson Used K Frame Model 12 Bolt Assembly - K357 Part K357

Smith & Wesson K Frame Model 12 Bolt Assembly .38 Special Used Part K357

$22.99

Smith & Wesson K Frame Model 12 Bolt Assembly .38 Special – Part K357 (Used)

Genuine OEM bolt assembly (cylinder stop) pulled from a Smith & Wesson K Frame Model 12 revolver chambered in .38 Special. The bolt indexes and locks the cylinder in alignment with the barrel — a common wear item on high-round-count revolvers and a frequent restoration part. This used factory pull has been cleaned and inspected and is in serviceable condition.

This is a used OEM part. Contact us to confirm fitment before ordering.

Key Features

  • Factory OEM Part: Genuine Smith & Wesson bolt assembly manufactured to original specifications
  • Cylinder Stop Function: Indexes and locks cylinder in proper alignment with barrel for reliable timing
  • Common Wear Item: Frequently needed for high-round-count revolvers and restoration projects
  • Used Condition: Cleaned and inspected serviceable factory pull part

Compatible Models

Model Frame Caliber Type
Model 12 K Frame .38 Special Double-Action Revolver

Note: Verify your exact model before ordering. Bolt assemblies can vary by model and production era. Contact us with any fitment questions.

Model Identification

To identify your Smith & Wesson revolver, swing out the cylinder and check behind the yoke on the frame for the model number. Model numbers were introduced in 1957–58. If no model number is present, your revolver may pre-date 1957 — contact us with your serial number for help identifying the correct part.

Installation

Disassembly and reassembly of the revolver is required. Professional fitting by a qualified gunsmith is strongly recommended. We ship to U.S. addresses only.

Specifications

  • Part Number: K357
  • Manufacturer: Smith & Wesson
  • Condition: Used
  • Compatible Caliber: .38 Special
  • Frame: K Frame
  • Weight: 4.0 oz

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