Smith & Wesson M&P 45 Magazine Spring
Factory OEM Part #428970000
Genuine Smith & Wesson factory magazine spring for M&P 45 pistols. Critical component that provides the force needed to feed cartridges reliably.
Key Features:
- Factory OEM quality
- Precision-wound for consistent tension
- Ensures reliable cartridge feeding
- Direct replacement spring
- Critical magazine component
Compatibility:
✓ Compatible with:
- M&P 45 Full Size (1.0 & 2.0)
- M&P 45 Compact (1.0 & 2.0)
Function:
The magazine spring provides upward force on the follower, pushing cartridges up for reliable feeding. Essential for proper magazine function and reliable feeding.
When to Replace:
Replace if experiencing feeding issues, if spring shows signs of weakening or compression, or if magazine fails to lock slide open on last round.
Maintain reliable feeding with genuine Smith & Wesson factory parts.