Fail Zero FZ 9mm Black Nitride AR9 BCG

Description

The Fail Zero FZ 9mm Black Nitride AR9 Bolt Carrier Group is a fully assembled, drop-in BCG designed for most 9mm AR-platform rifles and pistols. It is compatible with lowers configured for both Glock- and Colt-style magazines. Critical components are finished in salt bath nitride (black) to increase wear and corrosion resistance, and the carrier is heat treated to 8620 specifications.

Key Specifications

• This product is a Bolt Carrier Group intended for 9mm AR platforms.
• The caliber is listed as 9mm.
• The model designation is AR9.
• The finish is Black Nitride (Salt Bath Nitride) for improved surface durability.
• Compatible with Glock and Colt style magazines.
• The carrier is 8620 heat-treated.
• The carrier gas key is staked.
• Includes a 5.56 extractor as provided by the manufacturer.
• Equipped with a chrome firing pin.
• Listed configuration is No Hammer.

Built for straightforward installation in 9mm AR builds, the Fail Zero FZ Black Nitride AR9 BCG combines Mil-Spec heat treatment and a salt bath nitride finish to prioritize long-term durability and low maintenance. Its Glock- and Colt-style magazine compatibility and staked gas key support consistent operation across common 9mm platforms. For builders and experienced users looking for a reliable, drop-in bolt carrier group with corrosion-resistant surface treatment, this unit provides a practical, well-specified option.