Burris Optics 1x20 AR-1X Prism Red Dot Sight, Red/Green Ballistic CQ 1X Reticle,

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. Its compact design leaves room on your rail for a flip-out AR-Tripler . The rugged construction of this close quarter battle (CQB) sight is the toughest you'll find:• Hand-fitted to the tightest, shock-resistant tolerances • Waterproof and fogproof • Tethered caps and flip-up lens covers