Rubber City Armory Stainless Steel AR-15 Firing Pin - Nitride

Rubber City Armory Stainless Steel AR-15 Firing Pin - Nitride - Bolt Carrier Group for AR-15 - view 1
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Rubber City Armory

Overview

The Rubber City Armory Stainless Steel AR-15 Firing Pin - Nitride is a bolt carrier group. Compare prices from multiple merchants and find the best deal.

Specifications

MPN556-FP
FinishNitride
Caliber5.56 NATO

Available Merchants(1)

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Primary Arms
Free shipping over $99
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In Stock
$17

Build history on GunPartPicker

Builders on GunPartPicker first added the Rubber City Armory Stainless Steel AR-15 Firing Pin - Nitride to a build in June 2026.

Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today the one retailer we track has it in stock. Prices barely moved in September 2026, holding around $16.99, so there haven't been real sales lately. Buying today, the lowest price is $16.99 at Primary Arms, which matches the best price we saw in September.

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