A duel barreled, black powder loading HANDGONNE, hand cannon in other words, simply meant for anti-infantry, takes a while to load, having to use two individual pellets per slot and then you have to use a thin wooden rod to push down each pellet into the barrel, the pour black powder into that circle with the hole and then take a burning wick and light the wick, insert it in and wait until it fires. (Comes with a rain-covered version to prevent clogging of black powder. )
