KAK 5.56 compensator question

Any one have a KAK 5.56 compensator? Can you please measure the exit hole and let me know its diameter?

I ask because I bought one and I suspect the may have sent me the 9mm 1/2x28 version rather than the 5.56 1/2x28 version. The compensator came in a small bag with no markings and the only difference between the two versions is the exit hole. Mine measures at 0.371" and looks like a bigger hole then the compensator on the KAK website.

thank you
-Matt

Got an email back from KAK and to my surprise they said the exit hole should be .370", meaning this is the correct one.

-matt