FailZero 5.56 Full Auto BCG Black

Engineered for demanding applications, the FailZero 5.56 Full Auto BCG Black is designed to enhance rifle performance through advanced surface technology. Its EXO Nickel Boron coating delivers permanent dry lubricity, reducing friction and supporting reliable cycling even under high-volume firing conditions.

This bolt carrier group is fully assembled and compatible with most mil-spec M16, M4, or AR15 upper receivers. The Nickel Boron treatment on all critical components increases durability and resists wear and corrosion, contributing to consistent operation over extended use.

Features

• EXO Nickel Boron coating on all critical parts for reduced friction and improved reliability
• Fully assembled and ready to install in most mil-spec M16, M4, or AR15 upper receivers
• Permanent dry lubricity for smoother cycling and easier maintenance
• Enhanced wear and corrosion resistance for long-term durability

Specifications

• Compatible with 5.56/.223 platforms
• Includes: Bolt, Extractor, Bolt Carrier, Cam Pin, Carrier Key, Firing Pin
• Color: Black
• Brand: FailZero
• MPN: FZ-M16/4-01-NH-BLACK
• UPC: 094922014276