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You can even legally buy copies of the U.S. Army Improvised Munitions Handbook [1], which includes instructions on creating improvised firearms and other weaponry.

The moral panic about 3d printed weapons is complete nonsense. It's been trivial to make firearms out of hardware store and few practical skills. Back in high school we even made little black powder cannons in the metal shop, raiding fireworks for their powder and fuse and using ball bearings as the shot.

You don't even need steel pipe to make a shotgun, they're low enough pressure that for some types of shot you can even use copper pipe.

[1] https://www.amazon.com/Field-Manual-Survival-Evasion-Recover...

P.S. I think this is the link you were talking about


But I think should admit that open-source 3D-printing/CNC does makes it even easier and harder to stop.

No it doesn't. Have you ever used a hobby level 3d printer or cnc? Easy isn't the word I would use to describe the process.

What does harder to stop even mean?

I can just imagine crooks struggling to use a 3d printer lmao

Scalable, too

I know what you meant, but my mind jumped straight to tiny guns.

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