Smith & Wesson M&P Shield 40 Extractor Spring
Factory OEM Part #425580000
Genuine Smith & Wesson factory extractor spring designed specifically for M&P Shield .40 S&W pistols. Provides tension for the extractor to grip the case rim.
Key Features:
- Factory OEM quality
- Precision-wound for proper tension
- Ensures reliable case extraction
- Direct replacement spring
- Caliber-specific design
Compatibility:
✓ Compatible with:
- M&P Shield .40 S&W 1.0
- M&P Shield .40 S&W 2.0
Function:
The extractor spring provides the tension needed for the extractor to grip the case rim and pull the spent case from the chamber during cycling.
When to Replace:
Replace if experiencing extraction failures, weak ejection, or if spring shows signs of weakening or compression. Extractor springs are wear items that should be replaced periodically.
Maintain reliable extraction with genuine Smith & Wesson factory parts.