Smith & Wesson K Frame Model 12 Airweight Hammer Assembly .240" Wide Spur — Used Part 12112B
$29.99
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Smith & Wesson K Frame Model 12 Airweight Hammer Assembly .240" Wide Spur — Used Part 12112B
$29.99
Smith & Wesson K Frame Model 12 Airweight Hammer Assembly — .240" Wide Spur, Used OEM Part
Genuine used Smith & Wesson factory hammer assembly for the Model 12 Airweight K Frame revolver chambered in .38 Special. This centerfire hammer features a .240" wide spur for positive thumb cocking and is a direct OEM replacement for a worn, damaged, or missing hammer. Removed from a functioning revolver and inspected for serviceability — no cracks or damage, normal wear consistent with use.
Specifications
- Part Number: 12112B
- Manufacturer: Smith & Wesson
- Model: 12 (K Frame Airweight)
- Part Type: Hammer Assembly
- Spur Width: .240" (Wide Spur)
- Caliber: .38 Special (centerfire)
- Frame Size: K Frame
- Condition: Used — original factory part, inspected and serviceable
Model Compatibility Chart
| Model | Frame | Caliber | Compatibility |
|---|---|---|---|
| Model 12 (no dash) | K Frame Airweight | .38 Special | ✓ Compatible |
| Model 12-1 | K Frame Airweight | .38 Special | ✓ Compatible |
| Model 12-2 | K Frame Airweight | .38 Special | ✓ Compatible |
| Model 12-3 | K Frame Airweight | .38 Special | ✓ Compatible |
| Model 10 (all dash variants) | K Frame | .38 Special | ⚠ Verify fit — non-Airweight, same caliber |
| Model 11 (Airweight, .38 S&W) | K Frame Airweight | .38 S&W | ⚠ Verify fit — different caliber, same frame |
| Model 13, 65 (.357 Magnum) | K Frame | .357 Magnum | ✗ Not compatible — .357 Magnum hammer |
| Model 17, 18, 48, 617, 648 (rimfire) | K Frame | .22 LR / .22 WMR | ✗ Not compatible — rimfire hammer |
| Model 14, 15, 19 | K Frame | Various | ✗ Not compatible — different models |
Important Notes
- This listing is for the hammer assembly only. Hammer strut, mainspring, hammer pin, and associated parts are sold separately.
- This is a centerfire hammer. It is not compatible with rimfire K Frame models (17, 18, 48, 617, 648).
- The Model 12 is a K Frame Airweight revolver with an aluminum alloy frame. Verify your specific dash variant before ordering.
- This is a used part in serviceable condition. May show minor wear consistent with normal use. No cracks or damage.
- Professional gunsmith installation recommended for proper hammer fit, timing, and function.