S&W Model 22A Hammer Stop Spring .22 LR Used, Part 22A1-18
Factory OEM Smith & Wesson hammer stop spring for the Model 22A, 22A-1, and 22S semi-automatic rimfire pistols. Used surplus part in good working condition — minor cosmetic wear may be present but does not affect function.
Specifications
- Part Number: 22A1-18
- Caliber: .22 Long Rifle (.22 LR)
- Part Type: Hammer Stop Spring
- Condition: Used / Surplus
- Brand: Smith & Wesson
Function
The hammer stop spring controls hammer travel and positioning within the frame, preventing over-travel and ensuring the hammer returns to the correct rest position after each firing cycle. A worn or broken hammer stop spring can cause erratic hammer behavior or failure to reset. Replace with this OEM part to restore reliable operation.
Compatibility
| Model | Caliber | Type |
|---|---|---|
| Model 22A | .22 LR | Semi-Auto Pistol |
| Model 22A-1 | .22 LR | Semi-Auto Pistol |
| Model 22S | .22 LR | Semi-Auto Pistol |
Installation Note
Verify correct seating of the hammer stop spring before reassembly. Confirm hammer travel and reset function smoothly before returning to service.