This mounting set comes with two main pieces; a scope ring with rail on top and a fully adjustable rail mount with windage and elevation adjustment.
Both pieces will fit 30mm and 1-inch tubes (with supplied spacers), or select the 34mm scope ring if you require a 34mm mount attachment. These are for the shooter who wants full control of their illumination and to adjust the beam positioning for various distances. Works very well on day scopes and scope-mounted night vision devices.