Aero Precision 5.56 Bolt Carrier Group AR 15 Nickel Boron (NiB) BCG Review!

Published on January 27, 2017
Duration: 14:51

This review highlights the Aero Precision 5.56 Nickel Boron BCG, praising its lubricity, ease of cleaning, and reliability after 600-700 rounds with zero malfunctions. The BCG features a 8620 steel carrier and 9310 steel bolt, both HPT and MPI tested. The reviewer strongly advises against compromising on BCG quality in AR-15 builds.

Quick Summary

The Aero Precision 5.56 Nickel Boron BCG is highly recommended for its exceptional lubricity and ease of cleaning, thanks to its NiB finish. Constructed from 8620 steel (carrier) and 9310 steel (bolt), it's HPT/MPI tested and has proven reliable over 700 rounds with zero malfunctions.

Chapters

  1. 00:00Introduction & Initial Impressions
  2. 00:45Effortless Cleaning Test (NiB Finish)
  3. 01:25Material Specs: 8620 & 9310 Steel, HPT/MPI
  4. 03:05Internal Inspection & Carbon Buildup
  5. 04:15AR-15 Build: BCG & Barrel Importance
  6. 06:15Long-Term Reliability: 700 Rounds, Zero Failures
  7. 09:30Other Build Components & Teasers
  8. 11:30Final Verdict & Price

Frequently Asked Questions

What makes the Aero Precision Nickel Boron BCG easy to clean?

The Nickel Boron (NiB) finish provides a naturally lubricious surface that significantly reduces carbon fouling adhesion. This means most residue can be easily wiped off with a simple cloth, making maintenance much faster and less labor-intensive.

What materials are used in the Aero Precision 5.56 NiB BCG?

The BCG features a carrier made from durable 8620 tool steel and a bolt constructed from high-strength 9310 Carpenter steel. Both components undergo rigorous High Pressure Testing (HPT) and Magnetic Particle Inspection (MPI) for maximum reliability.

How reliable is the Aero Precision Nickel Boron BCG?

The reviewer has personally run approximately 600-700 rounds through this specific BCG without experiencing any malfunctions, extraction issues, or cycling problems. This extensive testing demonstrates its high level of reliability for AR-15 platforms.

Why is the BCG considered a critical component in an AR-15 build?

The Bolt Carrier Group is fundamental to the reliable operation of an AR-15. It handles chambering rounds, firing, and extracting spent casings. Compromising on its quality can lead to feeding issues, failures to extract, and overall unreliability.

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