Failzero EXO Nickel Boron 6.5 Grendel (Type II) Bolt Carrier Group


Elevate your AR-15’s performance with the Failzero EXO Nickel Boron 6.5 Grendel Bolt Carrier Group. Featuring patented NIB coating for superior durability and consistency, this BCG ensures smooth operation and enhanced firing performance. With upgraded extractor parts and EXO coating, it offers reliable extraction and reduced friction. Invest in Failzero for unmatched reliability and durability in your AR-15.

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FailZero EXO Coated 6.5 Grendel Type II Bolt Carrier Group

Looking for an upgrade to your AR-15? Check out the Failzero EXO Nickel Boron 6.5 Grendel Bolt Carrier Group. Additionally, this top-of-the-line BCG is perfect for those looking to take their firing performance to the next level. What sets the Failzero BCG apart from the competition is its patented NIB process for coating the bolt carrier. This unique process results in a higher boron content in the coating, making it more durable and consistent than other options on the market.

The Failzero 6.5 Grendel II Bolt Assembly’s fully assembled and ready to drop into your AR for immediate results. Also, the extractor parts, upgraded with a heavy spring, silicone insert, and o-ring for increased extraction tension. And because all of the key components are EXO coated, you’ll enjoy a permanent dry lube inside your AR that reduces friction and ensures smooth, reliable operation every time you pull the trigger. Plus, the EXO coating provides superior corrosion resistance and durability against all the elements.

Don’t settle for second best when it comes to your AR-15. Invest in the Failzero EXO Nickel Boron 6.5 Grendel Bolt Carrier Group and see what a difference it can make at the range or in the field.

Special Note: This is a Grendel Type II Bolt Carrier Group and is not to be used in a barrel that is Type I or could cause injury or damage because of the headspace tolerance between the Type I and Type II.

Failzero Nickel Boron 6.5 Grendel BCG Specifications:

  • 6.5 Grendel II Bolt Carrier Group
  • EXO Nickel Boron coated
  • Carrier, Bolt, Extractor, Cam Pin, gas key, and firing pin coated
  • fits all AR-15/M-16 Mil-Spec Uppers
  • M16 Bolt Carrier Cut
  • FailZero Logo Engraved into carrier
  • Weight 11.2 oz.
  • Made in the USA

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information:

Additional information

Weight 1.5 lbs



BCG Coating


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