Fail Zero EXO Coated 9mm AR9 BCG – Nickel Boron
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Fail Zero EXO Coated 9mm AR9 BCG – Nickel Boron | Glock & Colt Compatible

Flawless Function. Friction-Free Operation. Field-Proven Durability.

Step up your 9mm AR platform with the Fail Zero EXO 9mm AR9 BCG—the benchmark for clean-running, ultra-reliable pistol-caliber carbines. This drop-in bolt carrier group comes fully assembled and ready to install in your AR9 rifle or pistol, and is compatible with both Glock and Colt magazine-fed lowers.

What sets this BCG apart is Fail Zero’s proprietary EXO Nickel Boron coating, applied to all critical components. This military-grade coating provides permanent dry lubricity, drastically reduces friction, and resists wear, corrosion, and fouling. That means smoother cycling, longer service life, and easier cleaning—no matter how dirty your rifle gets.

⚙️ Key Features:

• ✅ Compatible with Glock & Colt Style 9mm AR Lowers

• ✅ 8620 Heat-Treated AR Carrier – Mil-Spec grade strength and durability

• ✅ EXO Nickel Boron Coating – Fail Zero’s patented finish for reduced friction & enhanced reliability

• ✅ Ramped Carrier Design – Protects hammer engagement, ideal for use with standard AR fire control groups

• ✅ Staked Carrier Guide (Gas Key) – Built to endure high-volume use

• ✅ 5.56 Extractor – Proven extractor design with wide parts compatibility

• ✅ Chrome-Plated Firing Pin – Clean ignition and corrosion resistance

• ✅ Drop-In Ready – Fully assembled and ready to run

• ✅ Weight: Approx. 14.5 oz – Balanced for PCCs and suppressed AR9 setups

🔫 Built for Reliability in High-Round-Count Environments

Whether you're competing in USPSA PCC, running suppressed, or just burning through ammo at the range, the Fail Zero EXO 9mm BCG is designed to perform. Its Nickel Boron surface stays slick even without lube, and its high-tolerance machining ensures reliable function shot after shot.

Less friction. Less fouling. More rounds downrange.