Aero Precision AR15 Barrel Nut Shim Kit

Aero Precision AR15 Barrel Nut Shim Kit

Product Code:
Calculated at Checkout

MPN: APRH100267C


  • 0.001" thickness allows precision barrel nut timing of most barrel nuts
  • Fits most AR-15 barrel chamber in 5.56/.223
  • Made in U.S.A.


  • Material: Stainless Steel
  • Finish: Raw Stainless Steel
  • Thickness: 0.001"
  • Outer Diameter: 1.18"
  • Inner Diameter: 1"


  • Most AR-15 barrels (5.56/.223) and barrel nuts


  • 8x Barrel Nut Shims


Have you ever run into the problem that the barrel nut will not align for the gas tube? Or have to over torque the barrel nut to make it fit and end up tearing up the threads? Some of our customers let us know that they had built several ARs and thought they knew how, but they didn’t do their homework. Don’t make this mistake, read and really know how to install the barrel nut and don’t forget a barrel nut shim kit.

Some Things Have to Be Done the Right Way

These Aero Precision AR15 barrel nut shims have only one purpose in life, to allow you to time the upper receiver with the gas tube. Basically, you have to be able to hold the upper, attach the barrel, torque down the barrel nut and then the fun starts. Measure the gap, take off the nut and install the right number of AR15 barrel nut shims. You need to torque, loosen, and retorque until the gas tube is straight on the top, barrel nut shims will allow you to time your barrel nut with the proper torque. A good quality Aero Precision barrel nut shim kit is an absolute must to do the job right.

Have It and Not Need It Is Always Better Than Need It and Not Have It

Once you're around the shooting world for a time you learn it’s a necessity to keep some spare parts on hand. Especially when you are building a new AR-15, and the last thing you need to complete your build is to install the handguard. Realistically normal people can’t afford to keep extra custom triggers on hand “just in case” or waiting for the next build. However, one Aero Precision barrel nut shim isn’t going to break you, unless you don’t have one when you need it. Make sure you buy a quality, stainless steel Aero Precision barrel nut shim kit.

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8 Reviews

  • There's something better

    Posted by Barry on 30th Mar 2021

    It wasn't very much money but it was still wasted. This shim kit is so thin it doesn't offer much in the way of shimming. I used all 8 and it barely made any difference. Plan on getting 3 sets to make any real difference.
    I ended up getting one from Spike's Tactical which has thin to thick shims which worked for me. I only had to use their thickest shim.

  • Works perfect

    Posted by Jeffrey on 25th Jan 2021

    Good deal

  • A build saver!!

    Posted by David Richter on 29th Sep 2020

    I bought an Aero Precision Quantum handguard for a 300 Blackout build. I accidently threw away the included shims. Aero was out of stock. Wing Tactical had them to me in 3 days.

  • Spacers

    Posted by Chuck on 8th Sep 2020

    Just what needed.Very fast shipping and well packed.

  • excellent product

    Posted by mk4soldier on 29th Apr 2020

    5 stars works as advertised.

  • just right

    Posted by John S. on 25th Mar 2020

    Yes these "goldie locks" shims are thin, easy to use and "just right".

  • ehh its a shim, it shims well :)

    Posted by George on 6th Oct 2019

    I did not have to use mine. I did open the package to inspect them. They are of quality steel, & I am sure they would do the job they are intended for.

  • areo precision shim kit

    Posted by frank on 3rd Jul 2019

    excellent product! there are 8 shims per pack as advertised. They are stuck together very tightly with oil, looked like there was only 2 in each pack, but there were 8. also I was afraid that 1 pack was not going to be enough, wrong! a .003" thick shim changes the barrel nut rotation ALOT! 1 pack of shims should get you to were you need to be. If not you have other issues going on! yes I would buy again and recommend doing buisness with wing tactical, excellent customer service!

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