Most Dangerous Weapons You Can Legally Own in the US

8/13 – Ninja Foot Spikes

A picture of ninja spikes

If you are living in Massachusetts, California or New York, where Ninja Foot Spikes are banned you’re going to have to find another way to scale walls. A real aid to trained assassins and ninjas in the middle-ages, it’s as simples as strapping these attachments to your ninja stealth shoes, and you’re good to take on Spiderman.