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Jupp have done a bunch of CNC work and it does require a fair bit more knowledge than a 3d printer for sure. But then these kind of things have started showing up https://ghostgunner.net so I'm sure it's only a matter of time before anyone can buy something closer to a 3d printer in simplicity.

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Right, but a ghostgunner is not a CNC machine in the common meaning of that word. It was made specifically for cutting 80% lowers (even if the GG website claims it's a 'general purpose' CNC), and even then, only the lowers from GG themselves. And yes, there are initiatives like the GGFlex, but none of that takes away from the fact that it's vastly harder to machine a gun than it is to print one. Like, even with a GG you still need a premade barrel, FCG, magazine etc. In the US, you can buy those off the shelf (for now), but most places in the world you can't. Maybe someone some day will build a GG-like device that can cut all of those parts with the ease the GG can do it. But until then, there are 3d printed guns for those willing to take the risk.

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