A turret cover for a turret assembly. In one or more embodiments the turret cover includes an upper portion including a turret housing defining a battery recess and an illumination recess. An illumination assembly can be mounted in the illumination recess. In various embodiments, the illumination assembly includes a downwardly facing surface including a lighting element. In various embodiments, the turret cover includes a lower portion including an exterior sleeve portion of an at least partially transparent plastic material and a plurality of etched adjustment marks. In some embodiments, the lower portion is at least partially inserted into the illumination recess such that an upwardly facing edge of the exterior sleeve portion is positioned adjacent to the lighting element of the illumination assembly such that, in operation, the lighting element illuminates the plurality of etched adjustment marks via an edge lighting process.