FAIL ZERO EXO AR15 / M4 Bolt Carrier Group

Published on August 4, 2012
Duration: 12:06

This review highlights the Fail Zero EXO Bolt Carrier Group (BCG) as a significant upgrade for AR-15/M4 platforms, emphasizing its Nickel-Boron coating's self-lubricating and low-friction properties. The coating drastically reduces carbon buildup, simplifying cleaning and enhancing reliability, especially in harsh conditions. Military testing validates its extreme durability, making it a worthwhile investment for critical firearms.

Quick Summary

The Fail Zero EXO Bolt Carrier Group features a Nickel-Boron coating that provides exceptional lubricity and hardness, drastically reducing friction and carbon buildup. This simplifies cleaning and enhances AR-15/M4 reliability, even under harsh conditions, as validated by military testing.

Chapters

  1. 00:00Intro & Range Demo
  2. 00:45AR-15 Reliability & Lube Issues
  3. 01:44Fail Zero NiB Coating Benefits
  4. 03:11Carbon Buildup & Cleaning Ease
  5. 04:34Microscopic Surface Comparison
  6. 05:16Durability & Military Testing
  7. 06:42Installation & Headspacing
  8. 07:38NiB Coated Hammer Benefits
  9. 09:03Post-Range Inspection
  10. 10:01Price & Final Assessment

Frequently Asked Questions

What are the main benefits of the Fail Zero EXO Bolt Carrier Group's Nickel-Boron coating?

The Nickel-Boron (NiB) coating offers superior hardness and lubricity, acting like a permanent lubricant. This significantly reduces friction, attracts less carbon and debris, and makes cleaning much easier compared to standard BCGs.

How does the Fail Zero EXO BCG improve AR-15 reliability?

By minimizing friction and preventing carbon buildup, the EXO BCG ensures smoother operation, especially under adverse conditions or high round counts. This reduces the likelihood of malfunctions often associated with poorly maintained or 'wet' AR-15 systems.

Is the Fail Zero EXO BCG durable enough for military use?

Yes, the EXO coating has passed Department of Defense trials. It withstood 50,000 rounds without lubrication in an AR-15 and 18,000 rounds in an M4, demonstrating extreme durability and corrosion resistance.

How easy is the Fail Zero EXO BCG to clean?

Cleaning is significantly simplified due to the smooth NiB surface. Carbon has minimal adhesion, often allowing the BCG to be wiped clean with a cloth, unlike standard bolts that require scraping tools.

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