The Quick Release Weaver (QRW) and Picatinny Style Rings offer superior integrity and tighter tolerances that are based on proven cross-slot design. The QRW design allows you to easily remove and reattach your scope to return within a half-inch of the original point of impact. The rings come in your choice of 1-inch or 30-mm diameter, and low, medium, or high heights. These rings will work with PRW bases and any other Picatinny-style mounting rail. Torx head screws are conveniently included for easy installation.