I would check midwayUSA. if they are available than midway will probably have them. The other option is to get a standard Weaver base adapter that clamps to your 22 base. than you can use any standard weaver style rings.
The see thru mounts would get you high enough also.
Look here you might have to cut and paste the link to get to the right page as is seems to be cutting it off on the auto link.
http://www.midwayusa.com/browse/BrowseP ... **11836***
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