Trying to buy a hand guard for my AR10 build.  I see options of “high profile” or “low profile”; does anyone know which fits an Aero M5 upper?

it is high

Aero Precision M5 should be a DPMS High profile.

https://www.aeroprecisionusa.com/m5-stripped-upper-receiver-1

Did you even try?

AKGunWinner:  yes sir, I did - I’m not stupid, just confused.  Notice that my post was edited.  I initially posted the question for a CMMG upper, which is a rifle I have completed.  I posted because I checked CMMG’s website, and it wasn’t shown.

When I realized my mistake, I edited my post to ask about the Aero, which is what I’m working on.  I edited my post before I thought to check Aero’s website.  So yes, I did “even try”, I just made a mistake.