AIMO M2 Red Dot Sight with Cantilever Mount (Black / Tan)AIMO's M2 Red dot sight, a modern classic in the Airsoft world. One of the earliest styles of red dot scopes in Airsoft, the M2 pattern is a military styled scope with simplistic operation. Windage and elevation adjustable dot reticle with 5 levels of brightness. Drops right on to a picatinny accessory rail with a simple screw type rail attachment bracket. Batteries not included. 2x CR44 LR44 AG13 batteries required.