MPN: APRH100268


  • Connect BAR style handguards to standard threaded upper receivers
  • Comes with 4 shims to properly time the gas tube with the upper receiver
  • Supports Mil-Spec AR-15 barrels with outer diameters up to .998”
  • Made in U.S.A.


  • Material: Steel
  • Finish: Mil-Spec phosphate coating
  • Weight: 1.2 oz.


  • Mil-Spec AR-15 upper receiver with barrels outer diameters up to .998”

**Torque with standard AR-15 armorer's wrench, this does not work with Magpul® Armorer's Wrench

**Recommended torque settings between 30 - 45 ft lbs. Torque over 45 ft lbs may result in damage to the barrel nut.


  • 1x BAR Barrel Nut
  • 4x BAR Shims


Well, you AR-15 is almost together and it’s looking good, all that’s left is putting that BAR style handguard on. That’s the one you want to run with, it’s a high-quality, functional Handguard that just looks right on your new build. However, you went with a standard upper, there’s nothing wrong with that, but you’re going to need an Aero Precision Barrel Nut to bring it all together.

Build It Like the Professionals Do With Aero BAR Barrel Nut

A professional weapons builder knows that using the right part makes a huge difference in the end. In order to put a BAR style handguard on your standard upper, a BAR barrel nut is the only way to go. When you want stability and safety out of your build please don’t try and get by with anything less than what’s supposed to be there. Order your Aero Precision Barrel Nut today and have it headed your way, and before you know it you’ll have it done right, like a pro.

Bringing It All Together

Your new BAR barrel nut has been computer machined to ensure ultra-exact tolerances and impeccable performance. Aero Precision uses tough 7075-T6 aluminum to create your BAR barrel nut, then anodizes the surfaces to make it even more durable. Designed into the Aero Precision Barrel Nut are four gas port options to make timing your gas tube easier. You can’t just kind of put something this important together. The smart choice of the proper barrel nut not only holds your gas tube and BAR style handguard in place but that expensive barrel too, that’s important.

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Reviews (6)

  • Excellent, required for AeroP rails

    Posted by WW on 20th Mar 2023

    Installs easily, my receiver only required 2 shims & nut timed perfectly. Op rod for gas piston passes through easily with no binding. Would buy again if installing Aero Precision rail on regular upper receiver.

  • Overall review

    Posted by Lunden on 1st May 2020

    The barrel nut works great with my upper. It secured tightly in place with no major effort. Securing to the Aero handguard I have was no issue either. As for shipping. Everything came in an orderly fashion. Even with the pandemic, my package was at my door in a few days. I highly recommend, not only the product but this company.

  • Precision...

    Posted by Joe on 1st Jul 2019 not just in the company name. Building a "no handguard" 9mm AR pistol with the nut exposed, so it has to both look good and get the job done. While not the intended application (it's meant to mate with an Aero handguard), this slim, solid part provides the perfect balance of form and function. Wing Tactical had the best deal around.

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