Designed for use with 5.56 and 7.62 rifles, the Meopta MeoAce offers a brilliant sight picture and a bullet drop compensation reticle with 12 illumination options to chose from, the lower of which can be used with night vision. The top of the MeoAce is a Picatinny rail for the installation of accessories such as a small back up red dot sight. Meopta MeoAce 5x40 Relfex Sight 602270