Leupold 174081 PRW2 1" Medium Matte Perma-Ring Weaver-Style Cross-Slot Scope RingsThe PRW2 Rings are part of Leupold's Cross-Slot Mounting Series, making them compatible with both Picatinny and Weaver style rails. Available in 1-inch, 30mm, and 34mm diameters, the PRW2 Rings offer a traditional look and are ideal for standard to magnum calibers. In addition, the PRW2 Rings are precision machined from solid steel and are every bit as rugged and dependable as Leupolds premium optics. Features: Available in 1-inch, 30mm, and 34mm diametersPrecision machined from solid steelIdeal for standard to magnum calibers Leupold PRW2 1" Medium Matte Perma-Ring Weaver-Style Cross-Slot Scope Rings 174081