The Sniper Pro features SidePin/Up Pin combination, Sword Fast Track elevation technology, 100 percent CNC T6061 aluminum construction, micro adjust elevation and windage, 1.5" Inside diameter round aperture, tool-less feature on windage and elevation adjustment, laser etched elevation and windage scales, 3rd axis adjustment, high and low sight mounting system with built-in offset for extended sight window and yardage tape on 45 degree angle toward shooter. Includes rheostat LED light kit.