MPN: APRH100185C


  • Magnetic particle inspected (MPI)
  • DPMS style
  • Properly staked gas key
  • Multi-caliber bolt designed to function with .308, 7.62x51, .338 Federal and other .308 based cartridges
  • Nickel Boron finish for smoother operation (Coated by Fail Zero)


  • Caliber: .308 Win / 7.62 NATO / .338 Federal
  • Weight: 17.6 oz.
  • Finish: Nickel Boron
  • Material:
    • Bolt Carrier: 8620 steel
    • Bolt: 9310 steel
    • Extractor: 4340 steel
    • Gas Key: 4130 steel
  • Profile: Full-Auto

**A full-auto (A.K.A. M16) bolt carrier installed in a standard semi-auto AR-15 will not make the gun fire full-auto.


  • DPMS Gen I pattern LR308 rifles

*Will not fit DPMS Gen 2 pattern rifles


  • 1x Nickel Boron Bolt Assembly
  • 1x Nickel Boron Extractor
  • 1x Nickel Boron Cam Pin
  • 1x Nickel Boron Bolt Carrier
  • 1x Nickel Boron Carrier Gas Key
  • 1x Firing Pin
  • 1x Firing Pin Retaining Pin


When it’s time to upgrade to a .308 nickel boron bolt carrier group, you’ll be happy to know that Aero Precision offers the DPMS .308 Bolt carrier group nickel boron finished that you want. With Aero’s reputation for quality, you can make the decision to upgrade to a .308 nickel boron bolt carrier group without hesitation.

Solid Quality, Precision Manufactured

Like everything in the Aero Precision stable, their DPMS .308 bolt carrier group nickel boron coated begins with the best materials available for the application. The Carrier body is machined from 8620 tool steel and the bolt from 9310 Carpenter Steel. Every component is carefully crafted, treated for maximum performance and longevity and thoroughly inspected so you know your money’s well spent when you invest in Aero Precision’s 7.62 / .308 Nickel Boron Bolt Carrier Group.

Nickel Boron Ultra-Smooth Performance You Can Count On

A .308 BCG Nickel Boron finished offers quality performance and self-lubricity like Teflon finishes with durability that old school treatments just can’t match. Your .308 BCG Nickel Boron coated will resist fouling and because it doesn’t require extra lubricants it won’t collect dust and grime. That means you won’t have to clean it as frequently and you can spend more time on the range or in operations without concern for failures due to fouling, grit or stickiness. Of course, there’s another advantage to choosing Nickel Boron finished components that are often overlooked. The visual impact of Nickel finished components when you uncase your weapon in front of the competition is pretty satisfying too.


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Reviews (4)

  • Aero Precision Nickel Boron BCG

    Posted by Chris on 12th Jul 2023

    It is an awesome addition to my M5 .308 build.

  • Nickle Boron 305 BCG

    Posted by HILLCLIMBER on 30th Mar 2023

    Just got this in mail today. Looks like a thing of perfection just like the one I got for my 556 that works great. Just fired it once for a first test. Perfect! Just be aware that they advertise a weight of 17.6 oz, but I got 18.1 oz.

  • BCG

    Posted by Earl Triplett on 22nd Nov 2021

    Worked flawlessly. I let a friend try his build because he was having issues with his and was not sure what the problem was and it worked great in his so he knew there was an issue with the BCG that he bought. I would definately recommend to others.

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