Or if you don't like the ATRS how about some Nightforce rings to go with the scope, I just mounted a 5-25x56 ATACR with a set of their six screw on a full rail setup and they are very nice rings, or Seekins rings also rebranded by Vortex as their precision rings if you can't find the seekins, they are very nice and solid also. I've also ran a Vortex precision cantilever mount and it is a very nice mount, I think the height would work great on that chassis, but that's just my opinion, I would think you would want something at least 1.5" high.