Gas-sealing means for tubular magazine gas-operated firearm

Details Gas-sealing means for tubular magazine gas-operated firearm Gas-sealing means for tubular magazine gas-operated firearm

F - Mech Eng,Light,Heat,Weapons

41

A

89/16

F41A 5/26 (2006.01)

Patent

CA 1081015

Gas-Sealing Means for Tubular Magazine Gas-Operated Firearm Abstract of the Disclosure A gas-sealing device for gas-operated firearms of the tubular-magazine type in which a pair of radially flex- ible piston-rings are provided for sealing the gases within the annular chamber between the gas cylinder and the magazine tube. Each piston-ring is provided with a gas-impingement surface so disposed that the pressure of the gases in the gas chamber against such impingement surfaces forces one of the rings outward into sealing engagement with the walls of the cylinder and the other inward into sealing engagement with the magazine tube.

298001

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