The Fail Zero Bolt Carrier Group (brand part no. FZ-AR15-01-NH-MATTE) comes fully assembled and ready to drop into most mil-spec AR-15 upper receivers, sold without a hammer for builders sourcing that piece separately or running an upper alone. Every critical surface is coated with Fail Zero’s EXO Nickel Boron technology, a permanent dry-lubricity coating that keeps the bolt carrier cycling smoothly without relying on wet lubricant buildup. Beyond the slicker cycling feel, the EXO coating meaningfully increases wear and corrosion resistance over a standard phosphate-finished BCG, which matters over the long service life a bolt carrier group sees.

Key Specifications

• Built for the AR-15 platform.
• Ships fully assembled, ready to drop into most mil-spec upper receivers.
• Sold without a hammer.
• Coated with EXO Nickel Boron technology for permanent dry lubricity.
• Finished in matte.
• Increases wear and corrosion resistance over a standard phosphate finish.

Frequently Asked Questions

Does this include a hammer? No, this bolt carrier group ships without a hammer.

What does the EXO Nickel Boron coating do? It provides permanent dry lubricity and increases wear and corrosion resistance over a standard finish.

Buy the Fail Zero AR-15 Bolt Carrier Group, No Hammer

Upgrade to a slicker-cycling, more durable BCG. Order the Fail Zero bolt carrier group from our AR15 bolts selection at our Lubbock, Texas gun shop for fast, direct shipping.