FailZero M16 / AR-15 EXO Coated Bolt Carrier Group

Manufactured by Fail Zero
SKU: 009-FZM16-4-01-NH
MPN: 009-FZM164-01-NH
Manufactured by Fail Zero
153 Reviews
Add to cart for sale price $138.59 $169.99

In Stock

Orders of non-FFL items will ship same day if ordered before 3:30pm CST (M-F). FFL orders will ship within 5 business days if transfer details are provided.

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Details

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
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

Get it @ $99

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This is without a doubt the best BCG on the market especially at $99. It is slicker and harder by orders of magnitude than a plain NiB BCG and those are very good. I've run plain premium NiB and Melonite/Nitride BCG's and this is the smoothest by far.

FailZero EXO Coated M16 Cut Complete Bolt Carrier Group

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I have purchased 2 of these from Primary Arms at seperate times both are fantastic. First one came in the FZ box the second was in a clamshell package. Both work great have no problems with either BCG. These are probably some of the finest BCG's made slick even in an upper with no dry film lube they seem to show a lot less wear on the inside of the upper receiver. Thanks Primary Arms for great Customer service and fast shipping.

FailZero EXO Coated M16

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Dropped in BCM 16". Nope didn't check headspace beforehand. 200+ rounds on initial outing which were also the first rounds through the rifle. Consistent ejection about 5 o'clock position in a pile about 6 feet away. Light carbon accumulation cleans off with a rag. Caked on carbon comes off easily with Real Avid AR15 scraping tool (Amazon). The bolt/carrier will stain a little however easily polishes off with minimal amount of FLITZ on a barrel patch and wipe with a clean rag. 2 drops of MP Pro7 and spread around the surface until no excess and ready to go. The finish is not as slick/shiny as the Spikes Tactical (I have both) however it cleans just as easily and functions with no discernible difference with my use. Great deal from Primary Arms with fast shipping in original packaging.

Impressed after a few more rounds

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Took to the range first time and the BCG jammed. Had to hammer it out. Took it home cleaned oiled and strated to keep charging the BCG. Took it again to the range and it performed great. As I read some reviews they are right that upper receivers tend to jam since its too tight. The BCG itself is very smooth. Would buy it again to replace a stock bcg.

Best Bolt Carrier Group on the Market.

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I have a total of 5 assorted AR- 15 Pistols in 223-5.56 and 300 Blackout all are using Fail Zero Bolts and JP Captured Springs. and to mention 24inch 5.56 18inch 5.56 and 2 16inch 300 Blackout and 10 inch 300 Black all using Fail Zero NIB Bolts and JP Captured Recoil Springs and have not had and issue at all whatsoever! Super fast shipping From Primary Arms and of course the best price and service you will find ANYWHERE PERIOD!

Fantastic product

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Purchased 2 FZ BCGs. 250 reds later all is well. As said before at first I thought it was fouled and almost sticky feeling. After running it as described I have had no FTF or FTE. Will buy again for my future builds. PA service is unmatched.

Impressive

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First off Im very impressed with how fast primary arms shipped my order. Will def be doing my shopping here. As for the bcg well its a failzero. Bcg came lightly lubed and it was just super smooth and slick. Took it apart and wiped everyhing down And lightly relubed it.. Cant wait to take it to the range.

High Quality

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I have another brand of Nickle boron bolt and carrier. This is a much better made and polished bolt. It is easy to tell this is a quality piece of equipment. I haven't tried it yet but if it works as good as it looks I'll order another for my daughters AR. The price was right on this piece.

If the bolt jams it's the upper and not the bolt

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The BCG runs well depending on the upper. A smooth or broken in upper will run this BCG flawlessly in a new upper with slight roughness on the inside will cause jams like the 2 negative reviews noted.

very nice..

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Fast shipping. Bcg is excellent.very smooth. Headspace checked out good with my barrels. .very happy with primary arms