Could C90 be fitted with tube ring

[garygoh]

Hi,

Any C90 owner have try to add tube ring to their C90 scope before, I want to mount the scope onto a vixen portal 2 mount but the finder scope will be at the bottom left once I mount it onto the portal 2. If any of you have mounted a tube ring to your scope, can you give me the brand and the model name of the tube ring thanks guys.

[Hardwarezone]

IIRC the rear oversized cell have a U cutout to accommodate the rear of the dovetail .... means no room left to put tube ring *unless the original dovetail is removed from the tube.