Fail Zero M16/4 BCG with Full-Auto Hammer

$179.99
In stock
SKU
FZ-FZ-M16/4-01-FAH

Nickel Boron treated parts include: Bolt & Extractor (5.56 and .223 compatible) Full-Auto Carrier Full-Auto Hammer (single stage) Cam Pin Carrier Key Firing Pin

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. EXO technology eliminates the need to apply oil and/or grease to treated parts for the life of your weapon.

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