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FailZero
Overview
The FailZero Exo Coated AR-15 Bolt Carrier Group is designed specifically for the 5.56 NATO caliber, providing enhanced durability and reliability in the operation of your firearm. The Nickel Boron finish not only offers a smooth surface for improved performance but also makes maintenance easier by resisting fouling and corrosion. This bolt carrier group is commonly found in builds featuring a mid-length gas system, making it a solid choice for those looking to optimize their AR-15 for both reliability and ease of cleaning.
Specifications
FailZero Exo Coated AR-15 Bolt Carrier Group
Available Merchants(5)
Prices checked
Price Alert
September 2026 on GunPartPicker
FailZero Exo Coated AR-15 Bolt Carrier Group ranked #67 of the 217 bolt carrier groups builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #57 of the 452 bolt carrier groups builders have added. Builds with this bolt carrier group are mostly chambered in 5.56 NATO (94%), split between mid-length (39%) and carbine-length (23%) gas systems, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today 4 of the 5 retailers we track have it in stock. Prices barely moved in September 2026, holding around $128.52, so there haven't been real sales lately. Buying today, the lowest price is $128.52 at KY Gun Company, which matches the best price we saw in September.
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Frequently Built With
The part most often added in each category by the builds that include this one
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Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
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