| 摘要 |
A paint ball gun comprises a receiver including an upper compartment and a lower compartment. A bolt is slidably mounted in the upper compartment and includes a chamber in a front end thereof for receiving a bolt pin. A gas control device is mounted in the lower compartment and includes a valve assembly, a striker, and a striker spring, the bolt and the striker being connected together to move jointly. The valve assembly comprises a positioning sleeve secured in the lower compartment, a valve pin, a valve spring mounted in the positioning sleeve, a seal member mounted to a front end of the positioning sleeve, and a cap secured to an end of the valve pin. The valve pin extends through the valve spring and located in the positioning sleeve. The valve pin includes a rear end extending beyond a hole in a rear end of the positioning sleeve.
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