FailZero M16/4 Full-Auto BCG - No Hammer - Nickel Boron EXO

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SKU:
DF061B
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MSRP: $169.95
$159.95
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Description

FailZero M16/4 Full-Auto BCG - No Hammer - Nickel Boron EXO

This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec M16, M4 or AR15 upper receivers.  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.

Nickel Boron treated parts include:

  • Bolt & Extractor (5.56/.223 compatible)
  • Bolt Carrier
  • Extractor
  • Cam Pin
  • Carrier Key
  • Firing Pin
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1 Review

  • 4
    FailZero has excellent customer support

    Posted by Do Tell on 19th Sep 2018

    First one had functioning issues in some but not all uppers. FailZero replaced it with no charge/no questions asked. Replacement works flawlessly. Would give it a 4.5 star if that were an option for their good recovery.

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