FailZero 5.56 Full Auto Bolt Carrier Group

SKU: FZ009-FZM164-01-NH UPC: 881314861781 MPN: FZ-M16/4-01-NH
(1 review) Write a Review
FailZero 5.56 Full Auto Bolt Carrier Group

FailZero 5.56 Full Auto Bolt Carrier Group

SKU: FZ009-FZM164-01-NH UPC: 881314861781 MPN: FZ-M16/4-01-NH
(1 review) Write a Review
$130.71 $169.99
(You save $39.28 )
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SKU: FZ009-FZM164-01-NH UPC: 881314861781 MPN: FZ-M16/4-01-NH

Brand: FailZero

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Product Details

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

 

Reviews

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  • 5
    BCG

    Posted by Tim on Dec 23rd 2025

    It's FailZreo so the name says it all .. great product, and also a great price..this is why I continue to shop here...keep up the great work !