For a whopping 82cents plus shipping, I'd give it a whirl! I doubt the size difference will matter but IF the 1mm is a problem you could soon ream/lap the rings out, either properly, or by wrapping your torch in fine emery paper and using that, then shimming with beer-cans or electrical tape for a snug fit.
It does specify "Suitable rail type: 18-21mm" so I guess put the verniers over your dovetails, It may be you have 3/8" or 11mm dovetail which is quite common on .22s, I'm sure there will be a mount to suit though, or there are dovetail to picatinny adapters. https://www.aliexpress.com/item/1005005972536176.html
Bookmarks