PRO™/CompM4™ Lower 1/3

We do not make any mounts or spacers in lower 1/3rd co-witness height. Everything we make is absolute or below. There are many aftermarket mounts for the M4 and PRO to bring it up to lower 1/3rd. One great options is a spacer made by SKD Tactical for the QRPII mount to bring it up to lower 1/3rd.