Nuts to the Midigun, we’re talking gauss pistols today. The gun works by accelerating a projectile through a pair of coils. Is it dangerous? Only indirectly: There is 440V across the capacitor terminals. It is kinda heavy, so you could throw it at someone. The laser sight could cause eye damage. The small parts are a choking hazard. Finally, it has about the same power as a pellet gun, but the projectile is much heavier so it moves a lot slower. All the info you need can be found in the FAQ.