Engineered for consistent function across varied conditions, the FailZero FZ Lightweight Bolt Carrier Group promotes reliable operation. Built with aligned components and careful tolerances, it supports smooth mechanical behavior. This 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.\n\nDeveloped for shooters who value predictable performance during regular practice, the FailZero FZ Lightweight Bolt Carrier Group offers practical handling. Ideal for range training, practice, recreational shooting, and competition. FailZero is renowned for its commitment to quality and innovation in firearm accessories.\n\n- Manufacturer: FailZero\n- Model: FZ-LW-BCG-01-NH\n- Product Type: Bolt Carrier Group\n- Weight: 9.2 oz\n- Material: EXO Nickel Boron\n- Unique Features: Nickel Boron treated, Extreme durability, Dry lubricity, Corrosion resistant\n- What's In The Box: Bolt & Extractor, Lightweight Bolt Carrier, Extractor, Cam Pin, Carrier Key, Firing Pin