Smith & Wesson M&P Striker Block Plunger
Factory OEM Part #277980000
Genuine Smith & Wesson factory striker block plunger for all M&P pistols. Critical component of the firing pin safety system.
Key Features:
- Factory OEM quality and precision
- Essential firing pin safety component
- Precision-machined for proper function
- Universal fit across M&P platform
- Direct replacement part
Compatibility:
✓ Compatible with:
- M&P Shield 9mm, .40, .45 (1.0 & 2.0)
- M&P Compact 9mm, .40, .45 (1.0 & 2.0)
- M&P Full Size 9mm, .40, .45 (1.0 & 2.0)
Function:
The striker block plunger physically blocks the striker from moving forward unless the trigger is fully pressed. This is the primary firing pin safety mechanism that prevents accidental discharge if the pistol is dropped.
When to Replace:
Replace if plunger shows wear, deformation, or if the striker block doesn't move freely. Critical safety component.
Maintain your M&P's safety systems with genuine Smith & Wesson factory parts.