Smith & Wesson Model 12 .38 Special Bolt Assembly - K357
$22.99
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Smith & Wesson Model 12 .38 Special Bolt Assembly - K357
$22.99
Smith & Wesson Model 12 Bolt Assembly
Used Smith & Wesson bolt assembly, also called the cylinder stop, removed from a K Frame Model 12 Airweight revolver chambered in .38 Special. The bolt rises into the cylinder stop notches to support chamber alignment during the firing cycle.
Product Details
- Brand: Smith & Wesson
- Model: 12 Airweight
- Frame: K Frame
- Caliber: .38 Special
- Part type: Bolt assembly / cylinder stop
- Condition: Used
- Part number: K357
- Weight: 4 oz
- Included: Bolt assembly shown
Model Compatibility
| Model | Frame / Caliber | Confirmed Application | Fitment Checks |
|---|---|---|---|
| Smith & Wesson Model 12 Airweight | K Frame / .38 Special | Model 12 bolt assembly; donor dash revision not identified | Match bolt nose width and profile, pivot geometry, spring/plunger arrangement and production-era lockwork |
| Other K Frame revolvers | Varies | Potential only when every dimension and mechanism matches | Frame size alone does not guarantee fit |
Compatibility warning: Smith & Wesson changed cylinder-stop geometry and related lockwork across engineering revisions. Fitment to every Model 12 dash revision or another K Frame model is not guaranteed. The installed part must be checked for timing, carry-up and positive cylinder lockup.
Installation
Bolt replacement affects cylinder timing and chamber alignment. Installation, fitting and a complete safety and function check must be performed by a qualified gunsmith. Used parts may show normal finish wear and handling marks; the photographed item represents the part and condition offered.