EOTECH HWS EXPS2 Holographic Sight (circle/dot reticle; see photos)
The EOTECH HWS EXPS2 is a compact holographic weapon sight with side-button controls and an adjustable, locking quick-detach lever mount for Weaver and MIL-STD-1913 (Picatinny) rails. Reticle is a circle with center dot (see photos).
This model features 20 daylight brightness settings, 0.5 MOA windage/elevation adjustments, and runs on a single CR123 battery. Waterproof rating is 10 ft (3 m), with fog-resistant internal optics.