FailZero M16/M4 Bolt Carrier Group For AR-15 – Nickel Boron, No Hammer (009-FZM16/4-01-NH)

• Bolt carrier group for M16 M4 and AR-15 rifles fully assembled
• EXO nickel boron coating provides dry lubricity and corrosion resistance
• Compatible with most mil spec M16 M4 and AR-15 upper receivers
• Reduces friction during cycling improving reliability and performance
• Nickel finish enhances durability and simplifies cleaning maintenance
• Drop in ready design requiring no additional assembly

The FailZero M16/M4 Bolt Carrier Group No Hammer Completely Assembled EXO Nickel Boron Coated Nickel Finish is a bolt carrier group designed for cycling and chambering rounds in M16, M4, and AR-15 rifles.

This FailZero M16/M4 Bolt Carrier Group is supplied fully assembled and configured without a hammer, using standard carrier dimensions for mil-spec platforms. It features EXO Nickel Boron coating with a nickel finish that provides a low-friction contact surface and corrosion-resistant treatment. The bolt carrier group is compatible with most mil-spec M16, M4, and AR-15 upper receivers and interfaces with standard gas systems and buffers. In typical setups, the Nickel Boron treated surfaces support consistent operation and simplified cleaning. This product is used for replacement or maintenance of the primary cycling assembly, and the FailZero M16/M4 Bolt Carrier Group fits platforms where standard carrier specifications are required.