Wide CQB Ghost Ring rear sight aperture for AK series. Measurements and markings taken from G&G RK47 MAX. Has Docter-style micro red dot mounting base, set to provide minimal lower co-witness and allow ambient light to the red dot light sensor. Measurements for RDS base taken from Samurai Docter clone. Requires 2x M3.5x0.6 or M4x0.7 nuts to match mounting screws included with existing micro red dot base.