FailZero 6mm ARC Bolt Carrier Group Steel FZ6MMARCNH. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity extreme durability and increases both wear and corrosion resistance. EXO Nickel Boron makes for...
FailZero 6mm ARC Bolt Carrier Group Steel FZ6MMARCNH. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity extreme durability and increases both wear and corrosion resistance. EXO Nickel Boron makes for...