FailZero 450 Bushmaster EXO Nickel Boron Bolt Carrier Group


FailZero 450 Bushmaster, EXO Nickel Boron Coated, MPI / HP Tested

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SKU: FZ-450-01-NH Categories: , , Tags: , ,

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FailZero 450 Bushmaster EXO Nickel Boron Bolt Carrier Group

The First in Nickel Boron Coated BCG’s

The FailZero 450 Bushmaster EXO Nickel Boron Bolt Carrier Group comes fully assembled and ready to drop into most mil spec AR15 upper receivers chambered in 450 Bushmaster.  Featuring an expertly machined 8620 Steel Carrier, Magnetic Particle Inspected (MPI) and High Pressure Tested (HPT).  All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both wear and corrosion resistance.  Our patented Nickel Boron coating will reduce friction and improve the overall performance of your rifle.  Our FailZero carriers are laser etched with the FailZero logo, and are 100% made in North Carolina, USA.

Nickel Boron treated parts include:

  • Bolt & Extractor
  • Bolt Carrier
  • Extractor
  • Cam Pin
  • Carrier Key
  • Firing Pin



Product Specifications

Manufacturer: FailZero
Part#: FZ-450-01-NH
Material: 8620 Steel Carrier
Type: M16 Full Auto
Extractor: D2 Tool Steel
Coating: EXO Nickel Boron
Forward Assist Serrations: Yes
Compatibility: M16 / M4 / AR15
Caliber: 450 Bushmaster
Other: Shot Peened, MPI/HPT Inspected

MSRP: $179.99

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Weight 13 oz
Dimensions 11 × 4 × 1 in


Part Type

Bolt Carrier Group, Upper Receiver Parts




450 Bushmaster

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