Sword Fast Track elevation technology. 100% CNC T6061 aluminum construction. Micro Adjust elevation and windage. Tool-less feature on windage and elevation adjustment. 1.5 inside diameter round aperture. Pins available in .010 and .019. Laser etched elevation and windage scales. Rheostat LED light kit. 3rd axis adjustment. High and low sight mounting system with built-in offset for extended sight window. Anodized matte black finish. Available right hand only.