The SWFA SS SSALT one piece, cantilever riflescope mount is a rock solid choice to mount your scope on any platform that utilizes the MIL-STD-1913 Picatinny rail mounting system, the 2009 NATO STANAG 4694 STD system or the long proven Weaver design. The SSALT mount works with both 30mm and 1" tube scopes (using the included inserts).