Factory OEM retainer hammer spring for Smith & Wesson M&P 15-22 rifles chambered in .22 LR. This essential spring maintains proper hammer function and is a direct replacement part.
Key Features:
- Factory OEM part number 403760000
- Fits M&P 15-22 rifles
- Retains hammer spring in proper position
- Precision-manufactured to exact specifications
- Factory new condition
- Made in USA
Specifications:
- Caliber: .22 LR
- Model: M&P 15-22
- Part Type: Retainer Hammer Spring
- Condition: Factory New
Genuine Smith & Wesson replacement part for maintaining reliable function of your M&P 15-22 rifle.