Yep, the Diarairi V/VM series are 30MM tubes. I own many different makes of scopes and the V/VM series of scopes are the best of them. My 2.5-10x50IR is mounted on my 30/06 and it is what I used when hunted boar in Germany. This hunting is done at night and if there is any moonlight at all the scope gathers it and I had no problem being able to hunt at midnight.
WW