The Fail Zero 6mm ARC Complete Bolt Carrier Group (brand part no. FZ6MMARCNH) is a drop-in bolt carrier group built specifically for the 6mm ARC cartridge. Fail Zero machines the carrier and bolt from steel and applies its EXO Nickel Boron treatment in the brand’s Classic finish, a coating that resists carbon fouling and wipes clean without solvents. The result is a bolt carrier group that runs cleaner between cleanings and installs as a drop-in upgrade for most compatible 6mm ARC uppers. For 6mm ARC shooters who want smoother cycling and easier maintenance than a standard phosphate BCG, this bolt carrier group is purpose-built for the cartridge.

Key Specifications

• Built specifically for the 6mm ARC cartridge.
• Ships as a complete bolt carrier group, ready to install.
• Finished with Fail Zero’s EXO Nickel Boron Classic coating.
• The Nickel Boron finish resists carbon fouling and wipes clean without solvents.
• Constructed from steel for durability under repeated cycling.
• Installs with a drop-in fit for most compatible uppers.
• Shipping weight runs about 0.8 pound.

Frequently Asked Questions

Is this a complete bolt carrier group? Yes, it ships complete and ready to drop into a compatible 6mm ARC upper.

What is the benefit of the Nickel Boron finish? It resists carbon fouling and wipes clean without solvents, making maintenance faster.

Buy the Fail Zero 6mm ARC Complete Bolt Carrier Group

A self-lubricating Nickel Boron finish and a drop-in fit make this BCG an easy way to keep a 6mm ARC upper running cleaner between range trips. Order it from our Lubbock, Texas gun shop for fast, insured shipping.