Engineered for consistent function across varied conditions, the FailZero FZ AR15 BCG NO HAMMER BLK promotes reliable operation.\n\nThis Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability, and increases both wear and corrosion resistance. Ideal for range training, practice, and recreational shooting, this BCG enhances your firearm's performance. FailZero is renowned for its commitment to quality and innovation in firearm components.\n\n- Manufacturer: FailZero\n- Model: AR-15\n- Product Type: Bolt Carrier Group\n- Material: Nickel Boron Coated\n- Unique Features: Permanent Dry Lubricity, Extreme Durability, Corrosion Resistant\n- What's In The Box: Bolt Carrier Group