A machine and a robot are not the same thing. A firearm is a machine. We even have so-called "Machine Guns". All firearms require external input to operate, an

A machine and a robot are not the same thing. A firearm is a machine. We even have so-called "Machine Guns". All firearms require external input to operate, and cannot operate autonomously. You can affix a firearm to a robot, however the firearm still requires input to operate.