AIM-O M3 Red / Green dot sight is a modern classic in the Airsoft world. One of the earliest styles of red dot scopes in Airsoft, the M3 pattern, with the cantilever mount, is a military styled scope with simplistic operation.

Windage and elevation adjustable dot reticule with 5 levels of brightness.

It drop right on to an accessory rail with a simple screw type rail attachment bracket.