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Aero Precision AR-15 Bolt Carrier Group 5.56mm: An In-Depth Review

Whether you are an avid gun enthusiast or you're just getting into the AR-15 world, one of the most important components of the AR-15 rifle is the Bolt Carrier Group (BCG). Aero Precision offers two versions of their 5.56mm BCG: the Standard Black Bolt Carrier Group and the upgraded Nickel Boron Bolt Carrier Group. In this review, we'll take a look at both models and discuss their features.

Standard Black Bolt Carrier Group

The Standard Black Bolt Carrier Group is machined from 8620 steel and features an M16-cut carrier, a mil-spec phosphate coating, a properly staked gas key, and a chrome-lined gas key and bolt channel on the 100-054-336 version. The 5.56 Bolt is machined from Carpenter 158 tool steel, shot peened, HPT tested/MPI marked, and features a black o-ring insert on the extractor.

The Standard Black Bolt Carrier Group from Aero Precision is considered a high-quality BCG that is a valuable addition to any AR-15 build. It is designed to provide reliable performance and is backed by Aero Precision's commitment to quality.

Nickel Boron Bolt Carrier Group

The Nickel Boron Bolt Carrier Group from Aero Precision is an upgraded version of the Standard Black BCG. This BCG is machined from 8620 steel and features an M16-cut carrier, a mil-spec phosphate coating, a properly staked gas key, and a chrome-lined gas key and bolt channel on the 100-054-336 version. The 5.56 Bolt is machined from Carpenter 158 tool steel, shot peened, HPT tested/MPI marked, and features a black o-ring insert on the extractor.

The Nickel Boron Bolt Carrier Group is designed to provide improved performance over the Standard Black BCG. The Nickel Boron coating provides increased lubricity and wear resistance which can lead to smoother, more reliable operation. The Nickel Boron coating also makes it easier to clean and maintain your BCG.

Conclusion

The Aero Precision AR-15 Bolt Carrier Group 5.56mm is an excellent choice for any AR-15 build. The Standard Black BCG is a high-quality BCG that is designed to provide reliable performance while the upgraded Nickel Boron BCG offers improved performance and ease of cleaning and maintenance. Both models are backed by Aero Precision's commitment to quality and are sure to be an excellent addition to any AR-15 build.

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