Magpul MIAD/MOE Bolt & AR-15 Firing Pin Storage Core - MAG057-Black
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Magpul
Overview
The Magpul MIAD/MOE Bolt & AR-15 Firing Pin Storage Core is designed for use with AR-15 platforms chambered in 5.56 NATO. This component provides an efficient storage solution for your firing pin and bolt, ensuring you have essential parts readily accessible during maintenance or emergencies. You'll typically find this storage core in builds focused on 5.56 NATO, making it a practical addition for those looking to optimize their AR-15 setup.
Specifications
Build history on GunPartPicker
Builders have been adding the Magpul MIAD/MOE Bolt & AR-15 Firing Pin Storage Core - MAG057-Black to their builds on GunPartPicker since February 2026. All time, it ranks #224 of the 446 bolt carrier groups builders have added.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today all 6 retailers we track have it in stock. It dipped to $9.43 at KY Gun Company for a stretch in September 2026, well under its usual $15.95, so sales do come around. Buying today, the lowest price is $9.43 at KY Gun Company, which matches the best price we saw in September.
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