When it comes time to mount your favorite Leupold scope on your favorite rifle why not use original Leupold QRW scope mounts. This 2-piece mount is designed to allow you to attach any type of Leupold QRW or PRW scope rings. The Leupold QRW bases are machined from solid steel. Don't get stuck using some other brand, stick with Leupold for all your optics and optics mounting needs.