This is basically derived from HHN's Pathfinder and Nexus Pro grips, but with obvious changes to fit the Dictator.
Hardware:
1 M5x40mm round-headed bolt/screw with a head diameter no larger than 9mm
1 M5 nut with 8mm wrench flats
The hole for the screw head may be somewhat tight depending on printing tolerances, screw size, phase of the moon, etc. Just sand it a bit or exert a bit more force to get the screw in there.
The author remixed this model.