Thanks for the replies. I managed to score several of these along with a major portion of a partially demilled USMC M40 Unertl 10x scope. The scope remnant is going to a friend along with a set of rings and the other sets are probably going to get listed for sale at some point.
At a local gun show this past weekend I picked up some sets of rings that a friend of mine urged me to grab. Based on what I know where they came from and what I picked up along with them, they were mounted on USMC M40A3 rifles with Unertl 10X scopes in them. Did have a few questions and knew...