Try these Detachable Extension Top Mount Rings to get the ideal eye relief. They let you position your scope forward or rearward. Weaver rings can handle any scope-mounting need. Whether you're looking for our classic Weaver's original cross-lock Top Mount, windage adjustable or dovetail extension rings; we have many great options. These rings are available in a variety of choices including aircraft-grade aluminum options or Grand Slam steel, and many more.