| 摘要 |
A ball holding magazine is connected with a gun barrel containing one ball in firing position. A housing supports the gun barrel and forms an air chamber, communicating with the ball to be fired, which communicates by an air passageway, with a reservoir containing air under pressure. A trigger operated valve, connected with the housing, opens the air passageway for applying reservoir pressure to the ball for firing. Minor adjustments may be made to the seating of the valve by the movement of a threaded nut, wherein the nut acts on the valve through an intermediate guide and linkage system. The linkage system also serves to connect the valve to a trigger handle.
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