30mm Mark 4 Rings Super High Picatinny Style Matte Finish by LEUPOLD OPTICS Product Overview now offers the Leupold 30mm Mark 4 Rings Super High Picatinny Style Matte Finish. The Mark 4 rings are constructed of high strength steel. The Mark 4 rings mount to your Mil Standard 1913 Picatinny rail or a Weaver rail. The rings have an exceptionally strong cross slot design that will not move from high recoil. These rings are for 30mm tube scopes and will secure it to your firearm very well. Summary The Leupold 30mm Mark 4 Rings are perfect for your tactical or hunting firearm. These rings absorb high recoil with no shift in zero and mount directly to your Weaver or Picatinny rail. The cross slot design is strong and dependable. These rings are lightweight and have an overall height of 1.40". Specifications and Features: 30mm All Steel Construction Quick Release Design Fits Mil Std 1913 (Picatinny) Rail Fits Weaver Rail 1.40" Height