Here is the pistol port I made for the customer ordering the early stowage bin, I have made a mold of this and they are spun cast in white metal. These are dummy ports and not functional. They are simple to attach by drilling two holes in the turret and bolting from the inside. To position it correctly you will need to fill the existing port hole.
TT46 Tiger 1 Pistol Port Basic external detail. $25.00
Regards
Mike