Gas-operated firearm

F - Mech Eng,Light,Heat,Weapons – 41 – A

Patent

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Details

F41A 5/22 (2006.01) F41A 5/28 (2006.01)

Patent

CA 2652673

A gas operating system (5) for a firearm renders the firearm capable of firing a wide range of shot loads by passively and/or automatically compensating for different shot loads. The firearm includes a plurality of ports (210, 212, 214, 230, 232, 234) formed in the firearm barrel, and corresponding ports (110, 112, 114, 130, 132, 134) formed in a gas cylinder (100) of the gas operating system. The ports tap gases generated during firing which are used to cycle the firearm. When firing different cartridge loads, differing combinations of the ports are selectively at least partially blocked or otherwise obstructed by the cartridge casing according to the size of the cartridge.

Un système de fonctionnement à gaz (5) pour une arme à feu rend l'arme à feu capable de tirer un grand nombre de charges de tir en compensant passivement et/ou automatiquement pour différentes charges de tir. L'arme à feu comprend une pluralité d'orifices (210, 212, 214, 230, 232, 234) formés dans le canon de l'arme à feu, et des orifices correspondants (110, 112, 114, 130, 132, 134) formés dans un vérin à gaz (100) du système de fonctionnement à gaz. Les orifices obstruent les gaz générés pendant le tir qui sont utilisés pour effectuer un cycle avec l'arme à feu. Lors du tir de différentes charges à cartouche, des combinaisons différentes des orifices sont sélectivement au moins partiellement bloquées ou bien obstruées par l'enveloppe de la cartouche selon la taille de la cartouche.

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