Fail Zero 9mm Bolt Carrier Groups – Nickel Boron & Nitride Coated BCGs

The Fail Zero 9mm BCG delivers flawless performance in AR-style 9mm carbines and pistols. Trusted by builders, competition shooters, and tactical operators, Fail Zero’s nickel boron and black nitride coated bolt carrier groups offer smooth cycling, easy cleanup, and unmatched corrosion resistance—even in suppressed or high-round-count builds.

Whether you're building an AR9 pistol, a 9mm PCC, or a duty-ready blowback firearm, the Fail Zero 9mm BCG is engineered for reliability and longevity under extreme use.

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🔧 Fail Zero 9mm BCG – Options & Features

✅ Machined from 8620 steel for strength and heat resistance
✅ Mil-spec full-mass carrier for optimal blowback reliability
✅ Compatible with Glock- and Colt-style 9mm lowers
✅ No hammer—ready to pair with drop-in trigger groups
✅ Polished feed ramp and extractor for reliable cycling
✅ Drop-in ready for AR-style 9mm upper receivers

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⚙️ Why Choose Fail Zero for Your 9mm AR Build?

✔️ FailZero EXO Nickel Boron Coating – Runs smoother and cleans faster than phosphate or nitride
✔️ Ideal for Suppressed Setups – Easy to maintain and carbon-resistant under high backpressure
✔️ Trusted for PCC Competition – Proven in USPSA and 3-Gun circuits for fast, reliable cycling
✔️ Built to Run Wet or Dry – Exceptional performance even without lubrication
✔️ Compatible with Glock/Colt 9mm Magazines – Drop into your preferred AR9 platform

“The best 9mm BCG I’ve run. Feeds anything. Cleaning is almost effortless.” — Verified Buyer

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🔍 Technical Specs

• Material: 8620 steel (carrier), S7 tool steel (extractor)

• Finish: Nickel Boron EXO coating or black nitride

• Weight: ~15.9 oz

• Platform: Blowback 9mm AR-15 / PCC

• Caliber: 9x19mm (standard Luger)

• Compatibility: Glock, Colt SMG style mags, most 9mm AR lowers

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🧪 Best Use Cases

• 🔫 AR-15 9mm Pistol Builds

• 🎯 Pistol Caliber Carbine (PCC) Competition

• 🧰 Duty-Use 9mm AR-Style Carbines

• 🛠️ Suppressed 9mm AR Configurations

• 🎒 Truck Guns & Compact Defensive Setups

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❓ Frequently Asked Questions

Q: Is this BCG compatible with Glock or Colt magazine lowers?
A: Yes, it works with both Glock-style and Colt SMG-style 9mm AR lowers.

Q: Will it function in a suppressed AR-9?
A: Absolutely. The Nickel Boron coating resists carbon buildup, making it ideal for suppressed builds.

Q: Does this BCG include a hammer?
A: No, this listing is for the carrier group only—no hammer is included. Pair with your preferred fire control group.

Q: Can I run it without lubrication?
A: Yes. The EXO NiB coating is designed to run reliably wet or dry—but some light oil is always beneficial in high-volume builds.

Q: Is it drop-in ready for my 9mm AR upper?
A: Yes. This BCG is drop-in ready and designed for blowback-operated 9mm AR-15 upper receivers.

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🔗 Related AR9 Build Parts

• AR-15 Charging Handles →

• Lower Parts Kits →

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🛒 Why Buy Fail Zero from Mounts Plus?

• ✔️ Authorized Fail Zero dealer

• ✔️ In-stock and ready to ship

• ✔️ U.S.-based customer service

• ✔️ Technical support for AR9 builds

• ✔️ Trusted by shooters since 1994

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🔥 Smooth Cycling. Reliable Feeding. Cleaner Operation.

When your 9mm AR build depends on flawless function, the Fail Zero 9mm BCG delivers unmatched reliability. Whether you’re suppressing, competing, or carrying, you can depend on it—round after round.

➡️ Order the Fail Zero 9mm BCG Today at Mounts Plus
➡️ Engineered for Performance. Coated for Endurance.

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