Armalite RE milspec or commercial?

quick question for those who know-- are Armalite RE milspec or commercial?

I’ve bought half a dozen and they’ve all been milspec. Nice tubes, too.

thanks for the reply. I tried measuring the RE with a set of dial caliper and was getting inconsistent readings so I thought I 'd ask here. shortly after Armalite responded to an email and confirmed milspec tube.

Caporider, huh? as in Caponord?