Have 2 sets of new Burris Signature 30 mm Universal Dove Tail Medium rings, #420578. These are new in the package and ready to use. These are the rings that have the polymer inserts so your scope doesn't get damaged (like Talleys do so famously as well as other steel rings). Their Medium 30 would also rate as a 'low' since it mounts the scope about as low as one could want. They also have the 10 degree offset polymer inserts if you need to make an adjustment when mounting the scope. Simply put them where you need to 'fix' a problem and they'll take care of the rest. $37.50 each plus $5.00 for priority mail shipping in the USA.