Konus Universal Cantilever mount is a truly universal mount fully adjustable in both length and height. It will fit any Weaver and Picatinny rail and also allow for the placement of additional accessories on its top. This 1-Piece mount can accommodate both 1? or 30mm riflescopes by adding or removing the included internal rings.Adjustable lengthAdjustable heightSuitable for Weaver/Picatinny railsIntegrated rail system for accessoriesAdd or remove the internal rings in order to switch from 1? to 30mm diameterAllen Key included