ATN mount?

I've got a ATN 4K night vision scope and looking for a decent mounting system. The rings that came with the scope are pretty useless.
I want to be able to move between a .22 for bunnies and a larger rifle for pigs etc, so ideally a 1 piece mount like a sphur.
The only problem is the large box housing the electronics is too large for most 1 piece systems I can find (doesnt fit between the rings), and the official ATN cantilever mount looks like flimsy junk.
Has anyone had experience with moving this scope between rifles?