The weapons developed by Tang Xiaotian were all smart firearms that required fingerprint registration, and they came equipped with a control system.
This control system was crucial. Without it, the gun would become useless and could not be fired. Furthermore, the control system could be remotely deactivated. Take the electromagnetic pistol in Li Yunlong's hand, for instance—Tang Xiaotian could shut it down with a single thought, reducing it to something even more useless than a poker.
Therefore, Tang Xiaotian wasn't worried even if these guns were sold, because he remained in control of them.
Chapter 502