The STEINER T-Sights are tough, compact optics especially suited for AR platforms. Due to the optional 4x magnification paired with the illuminated STEINER Rapid Dot Reticle, the user is enabled to quickly acquire fast moving targets as well as close-up targets. Depending on the lighting conditions the reticle can be adapted to ones needs by selecting different modes and brightness settings. The full reticle is illuminated red with 10 brightness levels, non-illuminated the reticle is black. The scope has an integral Picatinny rail on the topside for auxiliary accessories. Reticle Calibrated for 5.56.