The swivel buss, is a light rotatable short-range gun. Most of the cannon was mounted on the ship's rail on a pivot movable. Rail guns were carried on warships and merchant ships and used primarily against the crew of enemy ships. The cannon was crushed with coarse grind e.g. chopped lead, iron or nails loaded to do the greatest possible damage to the short distance. The swivel buss by ZITERDES is intended for model ships and tabletop captains.