The Weaver Sure Grip Detachable rings use a four-screw system, and have steel caps and an aluminum saddle for added strength. Also features the quick detach system, allowing you to loosen the thumb screws and go to iron sights in seconds. 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.