The AR-536 is a compact, fast-acquisition optic designed for lawmen, military personnel, and competitive shooters who want additional range. Its rotary, 10-position power selector allows quick changes from red to green powered reticle, or clear, crisp black reticle when power is off. With five red and five green power levels, all lighting conditions can be quickly matched. A CR2032 battery powers the reticle. The Picatinny rail allows piggybacking of additional sights, lasers or lights. This package includes an AR sight, FastFire II, and ARD.