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The future of CAD and 3D printing will arm citizens (youtube.com)
1 points by xkcdfanboy 4789 days ago
1 comments

People will be sad when they realize the barrels are not rifled. That means these are plastic zip guns.
It's not hard to add a rifling to the model is it? It seems like they are prototyping, testing, and incrementing designs.
It is impossible to add rifling to a plastic barrel that has metal projectiles fired through it at the speed of sound.

These are muskets.