Stun Guns Taser or stun guns, the common term for electroshock weapons, are powerful and convenient self defense weapons that have seen use by military, police and civilians. The best stun gun currently out there ranks in at 1.5 million volts, however more affordable stun guns in the 150000-500000 are perfectly adequate. You can get a personal stun gun in the standard handheld little black box design, but they are also available disguised as cell phone stun guns. Here we have only the most powerful and reliable stun guns for sale.