A.R.M.S. #22 Med 30mm Rings, Mk12
Some of the best rings made. Medium height is perfect for a Mk12 Mod 0 clone build, but also work well for many other rifles.
Another great use that is possible is as a great replacement for the Knight's Armament KAC 30mm rings, which are out of production, but are needed for a Mk11 Mod1 build. With the exception of the quick release, the ARMS #22 have a very distinctive look that can take the place of the KAC rings as well.
For a SAM-R build, you will want the ARMS #22 high rings.
Note: These are 2018 production items, so they do contain the normal 90 degree stop, despite the pictures looking otherwise.
One pair, factory new