| 摘要 |
A paint ball gun has a gun body and a trigger assembly therein. The gun body has a first chamber, a second chamber and a tunnel between the first and the second chambers. A rod, a percussion member and a shaft are provided in the first chamber, the second chamber and the tunnel respectively. A rear block connects the rod and the percussion member. A valve is provided in the first chamber and activated by the rod. A controller is provided in the gun body, has a guiding channel to be manipulative for communication the first chamber and the tunnel and an exhausting channel to be manipulative for communication with the tunnel. The trigger assembly is manipulative to issue the gas in the first chamber to the second chamber for movement the shaft and to exhaust the gas in the tunnel after moving the shaft out.
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