The EOTECH XPS2-2 is a holographic red-dot sight that allows for quick target acquisition with both eyes open. It has a compact design that saves rail space, and the Picatinny/Weaver compatible mount makes it easy to attach to a firearm. The sight is powered by a single CR123A battery, which is mounted transversely, making the XPS2-2 shorter than other battery versions while providing the same parallax-free sighting capabilities. The battery compartment is raised to accommodate the Delta Ring of most M16/AR15 platform firearms, and the control buttons are located on the rear of the rugged aluminum housing for easy operation. The illuminated reticle features a 65 MOA circle and a pair of 1 MOA dots, with 30 brightness levels available for selection. The XPS2-2 is designed for use in modern battlefield conditions, with submersion capability to a depth of 10 feet, and it is repeatable to 2 MOA after remounting. The rear window is a 3/16" thick shatterproof laminate with anti-glare and scratch-resistant coatings, while the front lens is made of 1/8" solid glass. Parallax error is not an issue with this sight because the optical system is based on transmission holography.