I'm putting a 44mm Zeiss V4 on a seekins havac. It's been a while since I bought any optics or mounting systems, just looking for options/opinions

ARC M-10's...

Seekins Havak, Seekins Rings:

https://seekinsprecision.com/scope-rings-30mm-tube.html

Lows will work for you.

^THIS^

There's a plethora of great Picatinny rings. Warne Mountain Techs are another quality domestic option.