It is forbidden to enter the event with weapons of any kind, regardless of the possession of a gun license.
It is forbidden to bring firearm reproductions without a red cap, or similar painting colour, on the front part of the object.
It is forbidden to bring cold steel and blades with sharp points and/or cutting edges (example: swords, knives, katanas...)
You can bring firearm reproductions with a red cap on top and blades without sharp parts, only if they are in line with your cosplay costume.