America has always defended itself and its freedoms with a gun in hand. But as technology evolves, code is starting to take its place.

A new generation of Second Amendment supporters no longer visits shooting ranges or joins the NRA — instead, it circulates blueprints for 3D-printed weapons. Its members' mission is to protect their homes and their right to bear arms, no matter how the government feels about it.

While Americans argue about bans, laws, and protests, an entire ecosystem of do-it-yourself gun culture has grown right under their noses. It’s nothing like the old movies, where weapons were built from pipes and nails. Ghost guns — firearms without serial numbers or registration — are often made with parts printed on 3D printers and bought online. U.S. law allows individuals to make firearms for personal use, as long as they don’t sell them.

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