Eye protection has to be top of list
A gun
balls, powder and ignition method depending whether matchlock flintliock or caplock
A means to extract ball is case of failure to go off
2 flanelette cleaning cloths, one for the gun other for my hands.
Brush and enough rod to clean the barrel.
Nipple wrench
“If a cricketer, for instance, suddenly decided to go into a school and batter a lot of people to death with a cricket bat, which he could do very easily, I mean, are you going to ban cricket bats?” :- Prince Philip said after Dunblane