FailZero M16 / AR-15 EXO Coated Bolt Carrier Group

Manufactured by Fail Zero

Details

Not all Nickel Boron is created equal and FailZero is the undisputed pioneer of Nickel Boron technology. When failure is not an option, you can depend on FailZero. The M16 Bolt Carrier Group is fully assembled and drop-in ready for most MIL-SPEC upper receivers. All critical parts are coated with EXO Nickel Boron technology providing permanent dry lubricity, extreme durability and increased wear and corrosion resistance. This patented Nickel Boron coating will reduce friction and improve the overall performance of your rifle.

NOTE: BCG may ship with either a dark FailZero logo or a subdued lasered FailZero logo.

Features:

M16 cut carrier
Magnetic particle inspected
Live fire tested

EXO Nickel Boron treated parts include:

Bolt, extractor, bolt carrier, cam pin, carrier key, and firing pin

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Specifications

Bolt FinishNickel Boron

Bolt MaterialCarpenter 158 Steel

BrandFail Zero

Caliber Gauge5.56 NATO

Carrier FinishNickel Boron

Carrier Material8620 Carpenter Steel

Carrier StyleM16 Bolt Carrier

High Pressure TestedLive Fire Tested

Magnetic Particle InspectMagnetic Particle Inspected

PlatformAR-15

Weight11.4 Oz

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see www.p65warnings.ca.gov

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8/11/2014 009-FZM16-4-01-NH

2 Shots

by Debi Beasley

2 rounds it jammed in chamber had to beat it out.. tried a old ar15 bcg work fine

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8/17/2015 009-FZM16-4-01-NH

Failed one 2 many

by Airborne RN

3rd, 12th, 121st, 122nd, & 123rd round resulted in FTE using a brand new FZ EXO nickel boron coated BCG placed in a SPIKES Lower Receiver containing a BRO DIT.AE 55gr 223 REM used in a Magpul Gen2 magazine.FZ failed one 2 many.Eventually used a PSA bcg to enjoy the rest of day.

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8/24/2015 009-FZM16-4-01-NH

Great Product and Service

by Duke

Another great product from PA at a great price, As always, the shipping crew comes through on their end and my products were at my doorstep in 2 days. On another note, Nick and his crew over at customer took care of me, as well.

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8/24/2015 009-FZM16-4-01-NH

Fail zero EXO(Nickel Boron coated ) M16 bolt Carri

by james browning

As always, good deal's good service and, top of the line products.

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8/24/2015 009-FZM16-4-01-NH

Nice BCG

by M

Built well, and functioned perfectly dropped in for 200 rounds so far. Expected the coating to be a bit slicker to the touch, and to completely wipe clean. It doesn't though, and you still need to do a tiny bit of scraping on the back of the bolt. Everything else wiped right off. If your looking for a bcg this is a good buy. If you already have a functioning bcg, I would only buy it if I had spare cash I was looking to spend.

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8/10/2015 009-FZM16-4-01-NH

FailZero

by jonathan anderson

Can't say a whole lot just built the gun. Seems to be a very well built bolt assembly. Even the gun shop that looked at it said it was a quality piece.

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8/24/2015 009-FZM16-4-01-NH

FailZero EXO (Nickel Boron Coated) M16 M4 Bolt Car

by Sean M

Excellent BCG, very smooth and matches up perfect with my Ballistic Advantage 18" barrel. Best price I have seen! Shipping was typical "Fast PA!"

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9/15/2015 009-FZM16-4-01-NH

FailZero Nickel Boron Bolt M16

by Pmacksr

Excellent bolt. No cycling issues at all wipes clean inside and out. Great Product And Great Service as always from Primary Arms. Thanks Again,Primary Arms

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8/24/2015 009-FZM16-4-01-NH

EXCELLENT! FailZero EXO (Nickel Boron Coated)

by Wilfredo Arillo

Excellent product and great quality. I tested as soon as i received it, runs flawlessly. It looks to be lubed all the time without adding lube :)

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8/24/2015 009-FZM16-4-01-NH

Easy clean and smooth as silk

by Jay

Excellent product, Fall Zero and WMD both are GTG. Can't beat the price on this.

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