I kind of remember hearing about how this would become a thing and now I saw a report from Sweden that they police are finding more and more of them. I didn't know 3D printing would be good enough to produce something safe enough? Are they also printing bullets? With the money in the drug trade I don't see the cost being an issue. So far the gang in Denmark and Sweden have only been killing each other but that could quickly change if you look at what is happening in Holland.