I just ordered a Leupold Mark 2 6x18x40mm and i is going on top of an M1A via a Smith Enterprises See-thru scope mount. I need rings and do not have the slighest idea what to look for. The only gun I have with a scope on it is my 10/22 and have no experience with rings. I don't need anything fancy, as long as they work good and are simple. I would prefer Leupold rings. Thanks i advance.