FZ M16/M4 BOLT CARRIER GROUP

The FailZero FZ M16/M4 Bolt Carrier Group is engineered to meet the demanding standards of modern AR platforms. Designed to fit most M16, M4, and AR15 upper receivers built to military specifications, this BCG is fully assembled for easy installation. Each component is treated with FailZero’s proprietary EXO Nickel Boron coating, which enhances surface durability while providing exceptional corrosion resistance and dry lubricity. This finish reduces friction and wear, contributing to smoother cycling and extended service life without the need for additional lubrication.

Constructed with precision and reliability in mind, the FailZero Bolt Carrier Group is a high-quality option for shooters seeking a dependable and low-maintenance upgrade. Its robust design supports consistent performance under various conditions, making it suitable for a wide range of applications where durability and reliability are priorities.