If you’re looking for a top-quality AR-15/M-16 bolt carrier group, look no further than the Failzero EXO Nickel Boron BCG. This BCG is coated with Nickel Boron using a patented process that results in more boron content than any other coating on the market. Also, this makes for a more consistent and durable quality coating that will provide excellent corrosion resistance and reduce friction for a smoother cycling action. Also, the Fail zero is fully assembled and ready to drop into your mil spec upper receiver – no modification required. So, if you are looking for a high quality, reliable bolt carrier group that will provide years of trouble free service, the Fail zero EXO is the perfect choice.

• Mil spec M-16 Bolt Carrier Group
• EXO Nickel Boron coated
• Carrier, Bolt, Extractor, Cam Pin, gas key, and firing pin coated
• also, fits all AR-15/M-16 Mil-Spec Uppers
• Full Auto Style Cut Carrier
• Compatible Calibers are .223, 5.56, 300 Blackout
• Made in the USA
• SKU: FZ-M16-NH

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information: www.P65Warnings.ca.gov