MPN: FZ-009-FZM164-01-NH / FZ-009-FZAR15-01-NH


  • Permanent dry lubricity - Nickel Boron coating eliminates the need for grease, oil, or any wet lubrication.
  • Easy to clean
  • Made in U.S.A.


  • Caliber: 5.56 NATO / .223 Rem / 300 Blackout
  • Material:
    • Carrier: Mil-Spec 8620 tool steel
    • Bolt: 158 Carpenter Steel
  • Finish: EXO Nickel Boron
  • Weight:
    • Full-Auto (M16) Model: 11.5 oz.
    • Semi-Auto (AR-15) Model: 11.15 oz.

**A full-auto (A.K.A. M16) bolt carrier installed in a standard semi-auto AR-15 will not make the gun fire full-auto.


  • AR-15


  • 1x 5.56 NATO / .223 Rem. Bolt
  • 1x Bolt Carrier
  • 1x Extractor
  • 1x Cam Pin
  • 1x Gas Key
  • 1x Firing Pin


Fail Zero makes products for those who cannot accept even the slightest chance of a weapon malfunction. The Fail Zero nickel boron BCG is perfect if you require maximum reliability from your weapon. The Fail Zero AR15 EXO-Treated Bolt Carrier Group is precision machined to fit your AR15 and function flawlessly, but this Fail Zero EXO BCG has something more.

Why Fail Zero Nickel Boron BCG?

Fail Zero strives to make use of the highest quality materials and the most precise machining methods. But the best feature of this BCG is the patented EXO nickel boron coating. It does much more than just guard against corrosion. EXO Technology Nickel Boron a metal coating that protects the parts against corrosion and wear typically sustained by firearm components. It even makes the parts less susceptible to carbon fouling, which means you won't have to spend ages scrubbing away at this bolt carrier group to get it clean. The Fail Zero EXO coating imparts a permanent lubricant quality to the metal, eliminating the need to keep a layer of oil on the parts.. This means that after a long session at the range, you can simply wipe off the surface to clean it! Spending time applying solvent and scrubbing away at hard, baked-on fouling will be a thing of the past.

Fail Zero BCG Is Built To Last

Finally, the nickel boron coating is hard enough to withstand heavy use without ever flaking or rubbing off. The bolt, carrier, hammer, extractor, cam pin, carrier key, and firing pin have all been coated with EXO Technology to make the toughest BCG around.

You can improve the performance of your AR and cut down cleaning time all at once by upgrading to the Fail Zero Nickel Boron Bolt Carrier Group. It can be relied on by everyone from casual enthusiasts to seasoned professionals.

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