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Fail Zero EXO M16 Bolt Carrier Group BCG AR15 Failzero Nickel
Fail Zero EXO M16 Bolt Carrier Group BCG AR15 Failzero Nickel

Fail Zero EXO M16 Bolt Carrier Group BCG AR15 Failzero Nickel

Part Number:FZ-M164-01-NH-MATTE
On sale: $139.95
Retail Price:$179.99
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Fail Zero EXO M16 Bolt Carrier Group BCG AR15 Failzero Nickel Boron AR-15 Part


A completely assembled, ready to install M16/4 Bolt and Carrier System. Kit includes six critical parts that are treated with EXO Technology, a revolutionary surface technology that provides permanent dry lubricity, radically improves the performance of your M16/4 and eliminates the need to apply oil or grease to treated parts for the life of the weapon. Treated parts include; Bolt, Bolt Carrier, Extractor, Cam Pin, Carrier Key.  Quality features include:

  • Case Hardened, Shot Peened and MPI Bolt (Magnetic Particle Inspected)
  • EXO Coated Bolt (40% more wear resistant than Chrome with a very Low Coefficient of Friction)
  • Mil-Spec Gas Rings
  • EXO Coated Carrier
  • Gas Key with EXO Coated Exterior and Chrome Lined ID.  Hardened to USGI Specifications 
  • Mil-Spec Staked Gas Key
  • Grade 8 Hardened Fasteners
  • Black Extractor Insert
  • Firing Pin and retainer

What is EXO Technology?
It is proprietary and patented nickel boron plating that is harder and more wear resistant then chrome plating and has a lower coefficient of friction.

UCT Coatings' EXO Technology: the active weapon advantage.

FAILZERO tactical weapon upgrade parts are treated with UCT Coatings' patented, military-proven EXO Technology. This unique, breakthrough technology creates a permanently lubricious surface, harder than the substrate itself, which eliminates the need for grease, oil, or any wet lubrication for the life of the weapon. Unlike films, conventional coatings and applied lubricants, it will never rub off, never flake off, never build up crud. EXO Technology eliminates wet-lubrication failures of critical components, giving you an "active weapon advantage" under all conditions.

Proven by DoD tests, SWAT teams, tactical experts.

The patented EXOTM Technology used in FAILZERO upgrades has been thoroughly tested and proven effective by UCT Coatings - developer of EXO Technology - and by the U.S. Department of Defense. Test results include:

  • 50,000 lube-free rounds on AR-15s.
  • 15,000 lube-free rounds on M9 pistols.
  • 18,000 lube-free rounds on carbine rifles.
  • 23,000 lube-free rounds on machine guns.

Additionally, EXO is specified on Army 81mm and 60mm mortar tubes, Blackhawk helicopter hoists, and several Navy ship applications.

EXO-treated FailZero upgrades are used by SWAT teams, law enforcement and security professionals, military units on the battlefield, and tactical training centers. EXO upgrades are now available for personal firearms.

FailZero upgrades are currently available for AR-15 tactical rifles.

Written by Bureau of Alcohol, Tobacco, Firearms and Explosives (BATFE), Chief of the Firearms Technology Branch
...M16 bolt carriers are not designed and intended solely and exclusively for use in converting a weapon into a machinegun and are not any combination of parts from which a machinegun can be assembled.  Further, an M16 bolt carrier is not a firearm as defined in the GCA or a machinegun as defined in the NFA.  An M16 bolt carrier is simply a machinegun part and as such its domestic sale and possession is unregulated under the Federal firearms laws.  It is not unlawful to utilize a M16 machinegun bolt carrier in a semiautomatic AR15 type rifle.




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