Since they are so lightweight, any Body Type is capable of wielding a handgun. As such, they are the only secondary weapon available to Light Body Types.
The advantage of a Handgun over other weapons is the fact that players carrying one also carry a knife in their off-hand. A knife strike deals more damage per hit than a two-handed weapon's gun butt but does not deliver the knockdown effect. A knife strike deals roughly half damage to a Medium Body Type.