Aero Precision 6.5 Grendel M16 / AR-15 Bolt Carrier Group - Black Nitride

Manufactured by Aero Precision
SKU: APRH100725C
MPN: APRH100725C
Manufactured by Aero Precision
4 Reviews

In Stock

Standard orders will ship out the same business day if ordered by 3:30 pm CST. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.



In building or upgrading an AR platform rifle, the bolt carrier group is, in many ways, the heart of the rifle. A quality BCG is part of what will make a rifle reliable, so it makes sense that the bolt and its carrier are one of those parts that precision manufacturing has really helped make into a part that can last for high round counts. If you’re looking to upgrade the bolt in your AR, consider the Aero Precision 6.5 Grendel Bolt Carrier Group in Black Nitride.

These are seriously nice bolt carrier groups. Made from 8620 steel, the M16 cut bolt carriers are sure to last basically as long as you care to keep it in the rifle. Additionally, the manufacturer has treated them with a black nitride finish so that the carrier won’t need as much cleaning or lubrication as untreated bolts. The 6.5 Grendel bolt is made from Carpenter 158 tool steel, so it will also last a long time. This would be a fantastic fit for several kinds of users, but in particular it would make sense for a competition gun in which you’d expect a very high round count, or for precision shooters. This is basically for folks who are building an AR. Finding parts for such a build can be kind of a pain, but this bolt will go a long way to ensuring a quality rifle when you’re done. The carrier is cut to a standard M16 style, so this will work with a large number of other parts. The Aero Precision 6.5 Grendel Bolt Carrier Group in Black Nitride is an excellent bolt carrier group if you want to build a precision AR that will stand up to high round counts or high speed competition shooting.

  • M16-cut carrier
  • Machined from 8620 steel
  • Type 2 Bolt Face (.136)
  • Carrier has forward assist serrations
  • Black Nitride Finish - advanced lower friction coating that minimizes the need for lubricants and cleaning
  • Properly staked gas key
  • 6.5 Grendel Bolt is machined from Carpenter 158 tool steel
  • Shot peened
  • HPT tested/MPI marked
  • Black o-ring insert on extractor
  • High quality BCG

Aero Precision takes some of the most state-of-the-art manufacturing techniques and equipment derived from their work in the aerospace industry and applies it to their products in the firearms industry. They have utilized their knowledge from years of building aircraft components to design and engineer AR-15 handguards, receiver sets, scope mounts, and more. They treat every product as if it were a precision flying machine and adhere to strict quality standards to ensure law enforcement, military, and civilian customers receive a product they can rely on.
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Bolt FinishBlack Nitride
Bolt MaterialCarpenter 158 Steel
BrandAero Precision
Caliber Gauge6.5 Grendel
Carrier StyleM16 Bolt Carrier
High Pressure TestedHigh Pressure Tested
Magnetic Particle InspectMagnetic Particle Inspected

Ratings & Reviews

4 reviews

  • 3 stars
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  • 2 stars
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  • 1 star
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Great Grendel

by -

The bolt I purchased from you was pertgor my 6.5 Grendel build. Works flawlessly. Fit and finish was impeccable. Couldn’t have asked for any better BCG. Thanks

No Useful markings

by -

Examining the bolt, the only marking is "MPI." Nothing to indicate that it is a 6.5 Grendel bolt. Comes with a box, but nothing to indicate that it has a Type II bolt. Could cause confusion if you have AR bolts of other types -e.g. 7.62 x 39 or Grendel Type 1. Would recommend the Aero laser engraves the bolt "G Type II" to avoid confusion.

Type II - 6mm ARC


Its Aero Precision so of course its beautiful. Just to let others know, this is a type-II Grendel/ 6mm ARC bcg. It is listed incorrectly on the website as a type I, but Aero Precision only makes one Grendel, and its a type II. I purchased this for my 6mm Arc build and it states 6mm ARC right on the package. I also added the Lantac Enhanced Pin. Just about ready to hit the range. All I can say from a thorough inspection is that this BCG is ready to go.

Aero Precision BCG

by -

The Aero Precision BCG for the 6.5 Grendel Type II is top quality. I have it working with a Faxon Big Gunner barrel. Great set up. I would highly recommend Aero Precision products.