FIRE WOLF 30mm Ring Cantilever Heavy Duty Scope Mount Tactical Picatinny Weaver Rail 20mm A solid and heavy duty offset ring mount to install magnified optics scope for easier eye relief setup Very helpful when mounting a scope with longer eyepiece tube, especially ones with illuminated reticles The QD cam locks can be finger adjusted when needed With the cam lever at unlock position, pull up and rotate the star wheel on the opposite end of the clamping bolt to adjust