Warne Scope Mounts 34mm Permanently Attached Medium Scope Base Ringswere designed and manufactured with the same exacting materials and techniques used in the 1 inch and 30 millimeter Maxima family of products. These mounting rings are Precision CNC machined to exacting tolerances from sintered steel technology. The powder coated finishes ensure the strength, ductility, reliability and foul weather resistance you have come to expect from Warne products. The new 34mm mounting rings are available in medium with three finishes to choose from. They will fit any Weaver or Picatinny spec base.