PNEUMATIC ARMS Russian patent published in 2012 - IPC F41B11/00 

FIELD: weapons and ammunition.

SUBSTANCE: pneumatic arms comprises a barrel and a magazine with a seat to locate a bullet. The magazine is equipped with a ledge, the lower surface of which has a fixing section, representing a part of a circumference, the diametre of which is equal to the external diametre of the breech barrel part, and the centre matches the centre of the magazine seat circumference. The lower surface of the magazine ledge is also equipped with a section having a shape of radius surface, the centre of which is a pin. The pin is installed in the magazine slot installed as capable of rotation relative to the pin and longitudinal displacement within the slot, where the spring is installed. The spring presses the magazine with the lower surface of the ledge to the breech part of the barrel.

EFFECT: higher accuracy of fire, elimination of deformation and increased bullet speed.

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