Patent ID: 7290539

Claim:
A high-pressure gas cartridge attachment and detachment apparatus for an air gun comprising: a high-pressure gas cartridge housing provided in a clip of an air gun; a back grip panel for a grip formed as a clamp lever; a lever rotation axis constituting a rotation fulcrum for the back grip panel; and a pressing curved surface capable of pressing a bottom part of a high-pressure gas cartridge, wherein the pressing curved surface comprises a rotatable roller; wherein a side grip panel of the grip is provided in an attachable and detachable manner so as to open and close the high-pressure gas cartridge housing, the high-pressure gas cartridge is configured to be attached and detached with the back grip panel of the grip rotated about the lever rotation fulcrum so as to be in an open state, and the back grip panel is configured to press against the bottom of the high-pressure gas cartridge due to rotation centered about the lever rotation axis so as to be closed, wherein the rotatable roller is configured to move the high-pressure gas cartridge in a straight line toward a pierce when the back grip panel is closed.