FailZero Exo Coated M16 / AR-15 Bolt Carrier Group - Black

FailZero Exo Coated M16 / Ar-15 Bolt Carrier Group - Black - Bolt Carrier Group for AR-15 - view 1
FailZero Exo Coated M16 / Ar-15 Bolt Carrier Group - Black - Bolt Carrier Group for AR-15 - view 2
FailZero Exo Coated M16 / Ar-15 Bolt Carrier Group - Black - Bolt Carrier Group for AR-15 - view 3
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FailZero

Overview

The FailZero Exo Coated M16 / AR-15 Bolt Carrier Group is designed specifically for the 5.56 NATO caliber and features a Nickel Boron finish that enhances durability and resistance to wear. Its M16 bolt carrier style ensures reliable cycling and compatibility with a variety of gas systems, making it an excellent choice for builds that prioritize performance and longevity. This bolt carrier group is commonly found in carbine gas system configurations, making it suitable for a range of applications from tactical to recreational shooting.

Specifications

MPNFZ-M164-01-NH-BLACK
StyleM16
Caliber5.56 NATO
FinishNickel Boron

Available Merchants(6)

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BattleHawk Armory logo
BattleHawk Armory
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In Stock
$141
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KY Gun Company
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$142
Palmetto State Armory logo
Palmetto State Armory
Free shipping
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$143
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Optics Planet
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$175
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Primary Arms
Free shipping
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$180
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Brownells
Free shipping over $99
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Out of Stock
$30

August 2026 on GunPartPicker

FailZero Exo Coated M16 / AR-15 Bolt Carrier Group - Black ranked #77 of the 229 bolt carrier groups builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #79 of the 445 bolt carrier groups builders have added. Builds with this bolt carrier group are mostly chambered in 5.56 NATO (67%, then 300 Blackout 33%), split between carbine-length (50%) and mid-length (50%) gas systems, and nearly all AR-15.

Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 5 of the 6 retailers we track have it in stock. The best price drifted down from $139.98 to $135.63 over August 2026 without a real sale. Buying today, the lowest price is $141.09 at BattleHawk Armory.

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Frequently Built With

The part most often added in each category by the 17 builds that include this one

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Caliber

66.7%
5.56 NATO66.7%
300 Blackout33.3%

Gas System

50%
Carbine50%
Mid-Length50%

Builds Featuring This Part

See all 2 →

Builds in the community that include the FailZero Exo Coated M16 / Ar-15 Bolt Carrier Group - Black

BuildPartsTotal
For hd 26" build
For hd 26"
22$2349.09
My 5.56 build build
My 5.56 build
18$1504.91

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