I have a 3200 3-10x40 on my Rem7600 mounted with Weaver bases and Burris Zee rings (Low) if that's any help. It fits perfect, but I didn't have much room for objective BC flip-ups. I just took some sand paper to the bottom of the cap and now it fits fine.
I think the 3-9x model is 1" longer too so it'll be farther up your barrel. I think "Low" should work, but the rear sight might be in the way.