Patent ID: 8307751

Claim:
A rifle barrel having a gas port for a gas operated weapon system comprising: a forward gas redirection tube operably associated to said rifle barrel so that expelled gas from a cartridge travels out of said gas port and into said forward gas redirection tube; a rear gas connector operably associated with said forward gas redirection tube for receiving expelled gas traveling in said forward gas redirection tube; a rear gas redirection tube removably connected to said rear gas connector for receiving expelled gas and transferring said gas to the action of the weapons system to assist with the cycling of the weapons system action; a sleeve arranged around the rifle barrel defining a void between the rifle barrel and said sleeve surrounding said rifle barrel; filler material carried in said void defined between said rifle barrel and said sleeve wherein said forward gas redirection tube is disposed within said filler material between said sleeve and said barrel and said filler material surrounds said barrel; and, said filler material includes material taken from the group consisting of: hydraulic cement, at least 50% by weight of calcium sulfate, 48% of less by weight of portland cement, epoxy, resin and metal shavings.