Description
The Fail Zero FZ M16 Bolt Carrier Group (BCG) is fully assembled and designed to fit most mil spec M16, M4, or AR15 upper receivers. Featuring EXO Nickel Boron technology, this BCG offers permanent dry lubricity, exceptional durability, and enhanced wear and corrosion resistance. Upgrade your firearm’s reliability and performance with this high-quality bolt carrier group, engineered for optimal function and longevity.
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