Not all Nickel Boron is created equal and FailZero is the undisputed pioneer of Nickel Boron technology. When failure is not an option, you can depend on FailZero. The M16 Bolt Carrier Group is fully assembled and drop-in ready for most MIL-SPEC upper receivers. All critical parts are coated with EXO Nickel Boron technology providing permanent dry lubricity, extreme durability and increased wear and corrosion resistance. This patented Nickel Boron coating will reduce friction and improve the overall performance of your rifle.
Install a FailZero M16/M4 Bolt Carrier Group to guarantee your rifle performs in any situation. These Bolt Carrier Groups made by FailZero come fully-assembled for easy drop-in installation on most Mil-Spec upper receivers. All essential components of the FailZero M16/M4 5.56/.223 Bolt Carrier Group, No Hammer are treated with an EXO Nickel Boron coating that creates permanent dry lubricity while greatly enhancing both the strength and corrosion resistance of the parts. With reduced friction, your weapon's overall performance will definitely improve. Get the FailZero M16/M4 Full-Auto BCG - No Hammer to ensure your weapon is performing at its potential.