The EXPS2 offers true 2 eyes open shooting and provides an unparalleled targeting experience. The increased height of the EXPS provides iron sight co-witness access in the lower third of the viewing window. It features easily adjustable side buttons; quick-detach lever (fits both 1" Weaver and MIL-STD-1913 rail); 20 brightness settings and a scrolling feature. Includes quick start guide, batteries and protective case.