The CPU Handgun is a standard-issue law enforcement pistol given to Mainframe's officers. A firearm with a relatively short barrel that is held and fired with one hand, though some Binomes used both hands on the trigger. The handgun was rarely seen before the days of the Web War, however they became somewhat common during the Viral Wars and the Net War. These guns fire rapid rounds of short-range energy bursts at their targets. The firearms can fire blanks during training, however Matrix always had the CPUs use live ammunition during training exercises held in Lost Angles.