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Why customers choose this item
✓9mm AR bolt carrier group
✓Black nitride finish
✓Glock and Colt compatible
✓Fully assembled BCG
✓Corrosion resistant finish
✓Salt bath nitrided finish
Product highlights
9mm bolt carrier group for AR platform rifles and pistols
Salt bath nitride finish enhances wear resistance and corrosion protection
Compatible with Glock and Colt style magazine lower receivers
Fully assembled design ready for drop in installation
Improves durability and performance in high use conditions
Black finish provides consistent appearance and protection
Product description
The FailZero AR9 9MM BCG Black Nitride is a bolt carrier group designed for cycling and chambering 9mm ammunition in AR-platform firearms.
This FailZero AR9 9MM BCG Black Nitride is supplied fully assembled for installation into most 9mm AR rifles and pistols. It is designed to fit platforms that accept Glock or Colt magazine pattern lowers as specified. The bolt carrier group uses a salt bath nitride finish that provides a hardened surface with wear and corrosion resistance. This product is used for maintaining proper cycling function in a 9mm AR system during range use. The unit features a black finish and a no hammer configuration. In typical setups, the FailZero bolt carrier group includes all required internal components pre-installed, supporting compatibility with standard AR9 upper receiver configurations.
Volume pricing for business and agency buyers, plus free ground shipping on most continental U.S. orders.
Business & agency accounts
Bulk discounts
Volume pricing, dedicated account management, ACH payment options, and special sourcing for businesses, agencies, law enforcement, and first responders.