The RG-59 uses powerful 9 mm (.380 cal.) center fire blanks (#6058 or #6053) to launch pyrotechnic scare cartridges. This launcher is intended to be used with the optional four shot adapter (#5505). The adapter screws into the barrel and allows simultaneous launching of any combination of up to four scare cartridges. This produces a bombardment-like effect resulting in extremely aggressive hazing. This rapid firing model features a swing-out cylinder with blank ejector. Launcher holds five 9mm blanks. Comes with a muzzle cup, small cleaning brush and instructions. This model will launch all Margo Supplies 15mm pyrotechnic cartridges. This launcher can also be used without the pyro cartridges as the 9mm blanks deliver an extremely loud sound effect by themselves.