The Muramasa is a large rifle with a black and gold decoration. It is one of the game's four Legendary Weapons, exclusive to the game's Raid Mode. As its only appearance is in Raid Mode, its stats are adjusted based on the level of the weapon. The Muramasa has a slow bolting animation and a very slow reload, coupled with a very low capacity (rarely above two rounds), though some of these may be buffed by character skills and Custom Parts, and the Muramasa also has the highest base piercing of any weapon in the game, at three, and has a 100% critical hit rate. The rare variant of this weapon is called the Zeroth (JP: 無銘).