the vortex razor HD gen3 is a 34mm tube this mount is a 30mm mount it will not work.
I don’t understand why MI would respond w/that reply. You can’t purchase this mount w/out selecting your desired ring size. One of which IS 30mm, yes. However, the 34mm ring size is yet one of many other options you have to choose from. So, wrong, it will in-fact work, as long as you select the 34mm ring option..
Product description above calls it 34 mm I’m confused