C163 Start the Operation

With Gao Fei's countdown firing, he pulled the trigger.

Ding! There was a light sound of a pin hitting. Gao Fei's shoulder slightly trembled, and then the muzzle swiftly moved again.

The three G36C short assault rifle had a built-in silencer system. The whiteboard also pressed a special external silencer on them. It sounded like a mosquito's cry