Product Summary
The FailZero AR-15 Bolt Carrier Group is a fully assembled unit designed to drop directly into most properly chambered Mil-Spec upper receivers. It features critical components coated with EXO Nickel Boron technology, which provides permanent dry lubricity and enhanced resistance to wear and corrosion. This specialized coating ensures easier cleanup while improving overall rifle performance. Additionally, the extractor hardware is upgraded with a heavy spring, silicone insert, and o-ring to provide superior extraction tension.
