▼ 31% below avg
CMMG Mk4 AR-15 Firing Pin Retaining Pin
Lowest Price
$0.73
MSRP
$0.95
Savings
23% off
Verified In Stock at
5 Stores
Updated
Aug 26, 2026
Compare Deals from 9 Retailers
Verified availability, then price
Lanbos Armory Best
● In Stock
$0.73
Red Team Armory
● In Stock
$0.77
OpticsPlanet Coupon
Code ARMSAGORA — 7% Off Most Items
● In Stock
$0.87
$0.94
Brownells
● In Stock
$0.91
KYGUNCO
● In Stock
$1.99
Shooting Surplus
● Availability Unknown
$0.81
MidwayUSA
● Availability Unknown
$0.95
Shooters Choice
● Availability Unknown
$0.95
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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.
