Patent ID: 7418896

Claim:
A recoilless weapon system comprising: a rear portion having a ballast payload cartridge containment portion and a primer port formed therein; a barrel in movable connection to said rear portion, said barrel having a chamber therein for containment of a cartridge, the chamber having a mouth; and a handle portion in removable connection with said barrel and/or rear portion, said handle portion comprising a grip, a trigger and a firing pin in movable connection with said trigger, said firing pin in proximity to said primer port of said rear portion, further comprising: a ballast payload cartridge removably disposed within said ballast payload cartridge containment portion comprising: a base; a forward portion; a side primer disposed in the forward portion of the ballast cartridge adjacent said base, so as to be disposed adjacent the primer port of the rear portion when loaded into the weapon; a propellant gas expansion chamber adjacent said side primer, said propellant gas expansion chamber having a ballast payload port and a combat cartridge primer port; a propellant cavity primer adjacent said ballast payload port; and a propellant cavity adjacent said propellant cavity primer; wherein a primer disposed on a combat cartridge loaded into the chamber of the barrel, and the propellant cavity primer, are simultaneously initiated by the initiation of said side primer and commensurate expansion of propellant gases through said propellant gas expansion chamber, and wherein said firing pin further comprises: a first firing pin disposed in the propellant gas expansion chamber adjacent said combat cartridge primer port, and a second firing pin disposed in the propellant gas expansion chamber adjacent said ballast payload port.