Don't miss a thing with both-eyes-open shooting. Push-button activation lets you choose between green, red, or black reticle settings. One lithium battery yields up to 5,000+ hours of service. The black reticle is etched onto the prism, so you can use the optic even without battery power.Easy-to-see reticle hash marks offer trajectory compensation to 600 yards. Lens coatings are maximized for glare resistance and low-light operation, and the sight is night-vision compatible.