Fail Zero 7.62x39mm AR-15 Bolt Carrier Group EXO Nickel Boron - No Hammer

The Fail Zero Bolt Carrier Group in 7.62x39mm is a complete, drop-in BCG engineered for AR-15 platform uppers chambered in the popular Russian intermediate cartridge. Fully assembled and ready to install, this carrier drops into most properly chambered Mil-Spec 7.62x39mm upper receivers, giving builders and shooters a reliable cycling component for a dedicated 7.62x39 AR build.

Every critical working surface is treated with Fail Zero's signature EXO Nickel Boron coating, producing a self-lubricating, corrosion-resistant finish that reduces friction between moving parts and makes routine cleaning far easier than on a standard phosphate or nitride BCG. The carrier is machined from steel and configured as a No Hammer Semi-Auto unit, the standard pattern for civilian AR-15 rifles.

Whether you are assembling a 7.62x39mm AR for range work, hunting with AK-pattern ammo on an AR platform, or simply replacing a worn carrier, this Fail Zero BCG delivers the smooth operation and long-term durability the brand is known for. Overall carrier dimensions measure 1.60" x 3.80" x 10.30".