Hatch - Very Small Round Gun Port X6.
Should you happen to find yourself with a tank that could be used in the far future by mankind, who's primary role is as a battelfield transport which happens to be named after a mythical fire breathing creature which is part Lion, Snake and Goat then these may be of interest.
As if you happen to find yourself making a 28mm scale model of such a tank but don't want a bunch of say, laser firearms, pointing out of the top these may well fit very nicely into the resulting hole and look rather splendid.
Gun Port 6mm Diameter
Made of polyurethane resin