Watch Modern Marvels Season 18 Episode 13 Online

"Tiny" weapons may not sound impressive…but small can kill, and it can also be easily concealed. From a pocket pistol used by the police…to a submachine gun wielded by a bodyguard…to a carbine in the hands of an Army Ranger, many of today's most effective weapons are smaller than ever. They can fit in your pocket, fly through the air, even break through walls–tiny weapons are an essential part of battle, self-defense, and spreading terror.