FailZero EXO Coated .308 Bolt Carrier Group - DPMS Pattern

Manufactured by Fail Zero
4 Reviews


Out of Stock


Out of Stock


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.

This Bolt Carrier Group is fully assembled and drop-in ready for most MIL-SPEC AR-10 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.

  • .308 compatible
  • DPMS Pattern and 6.5 Creedmoor compatible
  • Magnetic particle inspected
  • Live fire tested
  • EXO Nickel Boron treated parts include:
  • Bolt, extractor, bolt carrier, cam pin, carrier key, and firing pin


Bolt FinishNickel Boron
Bolt Material9310 Steel
BrandFail Zero
Caliber Gauge.308 Win
Carrier FinishNickel Boron
Carrier Material8620 Carpenter Steel
Carrier StyleDPMS Pattern Carrier
Magnetic Particle InspectMagnetic Particle Inspected

Ratings & Reviews

4 reviews

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Great BCG


The FailZero BCGs feel like a bar of wet soap in your hand. They are that smooth.

Beautiful finish, much nicer than the picture.


So I'll start off by saying that the bolt I received was much more polished than the picture, which is great because I was preparing to polish it myself to give it a nice shine. Its not a mirror finish, but its def a beautiful piece of steel.

Awesome BCG


Awesome bcg - I love the polish on it and it shoots very smooth. Shot 250 rounds on the first trip without a single problem.

Awesome looking and great shooting bcg


Awesome bcg! I love the polish look and it shoots better than it looks. Shot 250 rounds the first trip without any issues. Thank you Primary for an awesome product.