Engineered for consistent function across varied conditions, the FailZero FZ 9MM BCG NO HAMMER BLK NITRIDE promotes reliable operation. Built with aligned components and careful tolerances, this bolt carrier group supports smooth mechanical behavior.\n\nDeveloped for shooters who value predictable performance during regular practice, the FailZero FZ 9MM BCG NO HAMMER BLK NITRIDE offers practical handling. Known for their reputation in reliability, FailZero continues to deliver excellence in product development.\n\n- Manufacturer: FailZero\n- Model: AR9\n- Product Type: Bolt Carrier Group\n- Mounting System: Compatible with Glock and Colt style magazines\n- Material: 8620 heat treated (same as Mil-Spec) AR Carrier\n- Finish Color: Black Nitride\n- Unique Features: Staked carrier guide (gas key), 5.56 Extractor, Chrome Firing Pin\n- What's In The Box: Fully assembled and ready to drop into most 9mm AR platform rifles and pistols