The Vortex Cantilever 30 mm Mounting Ring (37 mm) is a sturdy mounting ring for (red dot) rifle scopes with a tube diameter of 30 mm. Due to the unique design of the cantilever mount, a rifle scope can also be mounted on a shorter mounting rail. This mounting ring also makes it possible to mount the Vortex Strikefire and the VMX-3T for example. The ring is suitable for a weaver / picatinny rail and places the rifle scope at 37mm from the base.