The “E” is for “Extreme.” The EXPS3 offers true 2-eyes-open shooting and a 7 mm raised base that still allows for iron sight access. It features easy-to-adjust side buttons, and an adjustable, locking, quick-detach lever for easy attachment and removal. Its night vision-compatibility makes it a versatile choice for day or night hunting.
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. The all-purpose EXPS2 features easily adjustable side buttons and a quick-detach lever (fits both 1″ Weaver and MIL-STD-1913 rail). It has a transversely-mounted lithium 123 battery which operates for 600 continuous hours at nominal setting 12 at room temp. It has 20 brightness settings and a scrolling feature, and it is submersible to 3 meters. The EXPS reticle has a 65 MOA circle with one or two 1 MOA dots.
The 558 is compatible with Gen 1-3 night vision devices and features an adjustable, locking, QD mount for instant removal. The operational buttons are located on the side of the sight, making this optic ideal for use with EOTech switch-to-side magnifiers. The drop-in replacement Laser Battery Caps (LBC and LBC2) are designed to work with this model as well, increasing aiming capabilities and speed to target all day and night long..