It looks like a normal black baseball hat, but it actually hides a deadly secret. Can you guess what it is?

The little picture of the dude in the corner gives you an indication: it's also a blackjack. There's a small pocket in the back of the cap that contains an impact material that is 110% the density of lead, and will not rust.

So next time you see a guy take off his hat at a baseball game? You run.

[$30, The BudK Catalog]

[Via Fashionably Geek]

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