S&W Model 22A Mainspring Hammer Spring .22 LR Used, Part 22A1-17
$6.99
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S&W Model 22A Mainspring Hammer Spring .22 LR Used, Part 22A1-17
$6.99
Factory OEM Smith & Wesson mainspring (hammer spring) for the Model 22A-1 semi-automatic rimfire pistol. Used part in good working condition — spring tension verified functional.
Specifications
- Part Number: 22A1-17
- Caliber: .22 Long Rifle (.22 LR)
- Part Type: Mainspring / Hammer Spring
- Material: Spring Steel
- Condition: Used / Surplus
- Brand: Smith & Wesson
Function
The mainspring drives the hammer forward under tension when released by the sear. Proper spring tension is critical for reliable rimfire ignition — a weak spring causes light strikes and misfires, while correct tension ensures consistent primer ignition every time.
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
A qualified gunsmith is recommended for installation. Verify trigger pull weight and test fire to confirm reliable ignition after installation.