The EOTech 512 (A65-1) takes standard AA alkaline or rechargeable batteries and has a standard reticle.

The Eotech holographic patterns have been designed to be instantly visible in any light, instinctive to center regardless of shooting angle, and to remain in view while sweeping the engagement zone. Reticles of EOTech HOLOgraphic Weapon Sights are designed as large, see-through patterns to achieve lightning quick reticle to target acquisition without covering or obscuring the point of aim.

The Eo Tech Holographic Weapon Sight (HWS) employs a true Heads-Up Display that eliminates blind spots, constricted vision, or the tunnel vision associated with tubed sights. All user controls are flush to the Eotech Holographic Weapon Sight's streamline housing with no protruding knobs, battery compartments or mounting rings blocking vision at the target area. True, 2 eyes open shooting is realized with EOTech HWS. Instant threat identification is achieved by maximizing the operator's peripheral vision and ultimately gaining greater control of the engagement zone.