▼ 16% below avg
CMMG Mk4 AR-15 Firing Pin Retaining Pin
Lowest Listed Price
$0.73
MSRP
$0.95
Savings
23% off
Retailers Reporting In Stock
5 Stores
Updated
Sep 2, 2026
Compare Deals from 9 Retailers
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Firing Pin Retainer
Fits AR-15
Steel
Specifications
Description
The CMMG Mk4 Firing Pin Retaining Pin is perfect for your next AR-15 build or just keep a few on hand for spare parts.
