This new set includes 9 metal gun barrels. They faithfully replicate the triple 46cm gun turrets found on the Japanese Yamato Battleship. Each barrel has a hollow muzzle and be quickly and easily installed on the Yamato model kit and therefore eliminating the kit standard plastic components. This set also includes aluminum projectiles (20 pieces) to replicate Type 91 armor piercing shells.Sprue Brothers Tamiya 1:350 Metal 46cm Gun Barrels - w/Projectiles #12643, TAM12643