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FailZero built its name on EXO Nickel Boron, and this AR15 bolt carrier group is where that reputation comes from. It ships fully assembled and ready to drop into most mil-spec AR-15 upper receivers, so it goes straight into a fresh build or replaces a tired carrier without any fuss. The no-hammer configuration means you're getting a complete BCG on its own, which is exactly what you want if your trigger group is already sorted and you just need the carrier assembly.
The big draw here is the coating. FailZero's parent company, UCT Coatings, developed the patented EXO Nickel Boron process, and the same technology shows up on hard-use military gear. On a bolt carrier group it translates to permanent dry lubricity, reduced friction across every contact point, and strong wear and corrosion resistance. In plain terms, the thing runs slick and cleans up fast. Folks who shoot these regularly talk about carbon wiping off with a rag and a couple of q-tips instead of a full scrub session. It also means you can run it dry or with minimal lube, which is handy in dusty conditions where oil just grabs grit.
This version wears a matte black topcoat over the EXO base, giving it a non-reflective look inside the upper. Worth knowing: on high-contact areas like the rails and ramps, that black topcoat will wear through over time and expose the bright Nickel Boron underneath. That's normal and purely cosmetic, and plenty of builders like the broken-in look it develops. The critical parts treated with EXO include the bolt, bolt carrier, extractor, cam pin, carrier key, and firing pin.
It's cut for 5.56 NATO and .223, and it plays nice with 300 Blackout builds too. Between the slick operation, the easy cleanup, and FailZero's track record for reliability, this is a carrier group that earns its spot in serious builds without demanding constant babysitting.
No, this is the No Hammer configuration, so it's a complete bolt carrier group only. It's the right pick when your lower already has a trigger group installed and you just need the carrier assembly. If you specifically want a hammer bundled in, FailZero offers a separate semi-auto-with-hammer variant.
Yes. It ships fully assembled and is built to drop into most mil-spec AR-15 upper receivers with no fitting or tuning required. It's cut for 5.56 NATO and .223, and works well with 300 Blackout builds too.
The matte black is a topcoat applied over the EXO Nickel Boron base. On high-contact areas like the rails, ramps, and carrier ends, that topcoat wears through and exposes the bright silver Nickel Boron underneath. It's completely normal and purely cosmetic, and it doesn't affect how the BCG runs.
The EXO Nickel Boron coating provides permanent dry lubricity, so it can run dry or with very light lube. That's a real advantage in dusty or gritty conditions where oil tends to trap debris. The slick surface also means carbon wipes off easily, cutting down cleaning time between range trips.
| UPC | 094922014368 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | FZ-AR15-01-NH-MATTE |
| Color | Black |
| Model | |
| Product Type | Bolt Carrier Group |
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