Axeon Optics Prism 3X Etched Reticle Sight Fixed power prism optics are popular for many reasons, not the least of which is that they are robust, simple designs that just perform. Axeon Optics Prism 3X scope is a tough prism optic featuring an etched ballistic reticle that can be illuminated in your choice of five levels of red or green light. Of course, the major benefit of using an etched retilcle is that no illumination is needed to use it. The windage and elevation turrets are capped and tethered to the body and flip-up lens covers are included as well. Illumination is handled by a single CR2032 battery. Both sides and the top of the body are covered with Picatinny rail sections and the Prism 3X mounts to common Picatinny rail.