Fail zero Has a patented NIB Process When Coating their AR-15 Bolt Carrier Groups. This gives their coating the most boron content in the field of Nickel boron coating.  The Revolutionary coating  gives the most consistent and durable quality coating in the firearms industry, using only quality components that are made in America.  The Fail zero AR-15 Semi Automatic Bolt Carrier group comes fully assembled. It will be a direct drop in replacement right out of the package.  The parts that are EXO Coated will provide a permanent dry lube inside your AR, which provides durability as well as corrosion Resistance. As a result, it reduces friction resulting in a better performing cycle of your AR-15 rifle. In conclusion, this Fail zero Nickel Boron BCG makes a great addition to your AR-15 Bolt Carrier collection.

• AR-15 Bolt Carrier Group
• EXO Nickel Boron coated
• Carrier, Bolt, Extractor, Cam Pin, gas key, and firing pin coated
• fits all AR-15 Mil-Spec Uppers
• Semi Auto Style Cut Carrier
• Compatible Calibers are .223, 5.56, 300 Blackout
• SKU#- FZ-AR15-NH

This Failzero Nickel Boron BCG will pair well with many of our AR-15 upper assemblies