Made myself some custom rings & have two sets left - I'm not making any more don't bother asking.
These are right at about .050" lower than low Talleys
Made of stainless steel, screws are not stainless so they don't gall. Weigh five (5) ounces with all the screws
$158 shipped per set, buy both sets for $308
Screws to hold them to the receiver will likely need to be shortened depending on which holes are used on the front bridge.