Fail Zero EXO AR9 9mm BCG Nickel Boron (No Hammer)

The Fail Zero EXO AR9 Bolt Carrier Group is a fully assembled 9mm BCG finished with Fail Zero’s EXO Nickel Boron coating. It is designed for AR9 platforms and is compatible with lowers that accept Glock- or Colt-style magazines. Critical parts receive the EXO Nickel Boron treatment to provide durable dry lubricity and increased corrosion and wear resistance. The carrier is heat treated and includes a staked gas key for consistent operation.

Key Specifications

• The caliber is 9mm for AR9 platform compatibility.
• The finish uses EXO Nickel Boron technology on critical components.
• The carrier is constructed from 8620 heat treated material.
• The unit ships fully assembled and ready for installation.
• Compatibility includes Glock and Colt-style magazines.
• The carrier features a staked gas key (carrier guide).
• This configuration is listed as No Hammer.
• Equipped with a 5.56 extractor as specified in the product details.
• Includes a chrome firing pin per the manufacturer description.

Compact and practical for range, training, and competition use, the Fail Zero EXO AR9 BCG delivers corrosion-resistant surfaces and reduced friction where it matters. Its drop-in readiness and durable coatings make it a straightforward upgrade for AR9 platforms that value consistent cycling and simplified maintenance. Built to perform without unnecessary extras, this BCG focuses on reliable operation and long-term wear resistance.