Looking for suggestions. I recently built my first AR that has been amazing up to this point. However I’m having issues with my Handguard rotating ever so slightly over the barrel nut. It doesn’t slide up and down, but rather it rotates ever so slightly around the barrel nut. We’re talking maybe a millimeter clockwise and counter-clockwise. Nothing to be really concerned about but enough that it irritates me.
The Handguard is a 2A Armament [Builders Series Handguard](https://imgur.com/gallery/dUi7OH0). As you can see in the photo it secures with the 3 screws under it. I asked 2A and they didn’t really have a solution.
Have any of you guys had this situation? Is there something I can coat the barrel nut with that will prevent it from rotating but won’t bond with the Handguard?