Imperium Sidhicum wrote:Sovaal wrote:I mean an all plastic firearm is effectively a bomb, so just make a bomb in that case.
It's possible to print with powdered metal as well with some printers. The end product still looks rather shabby and probably wouldn't last more than a few shots, every one of them being at least as dangerous to the operator as to the target.
Printing all the other bits that make a gun is easy enough and most don't even need to be metallic, but fabricating a proper gun barrel is currently beyond the existing technology. What appears to be a simple metal tube is actually easily the most sophisticated piece of engineering in most modern firearms, employing complex metallurgical techniques in their production. A 3D printer basically just sinters layers of powdered metal in the shape of a tube, so a printed gun would likely fail catastrophically after a few shots.
Some may argue that printed guns may still be useful for assassins who ideally only need to get one shot right, or robbers who can ideally carry out a heist without having to fire even once, but that still leaves the problem of ammunition - it cannot be printed, purchase of ammo requires a valid gun permit in most locations, and the necessary components to make one's own rounds are also regulated. All that considered, not to mention the price tag of a suitable printer and the specific skills required to operate it, a serious criminal in need of a gun would likely find it much more convenient to just buy a conventionally-made firearm and ammo on the black market, having both the contacts and the means to do so, and his purchase in the very least being unlikely to blow up in his face.
Fully functioning firearms barrels have already been printed. The machines they used to do it are still a bit out of the price range for normal people but they're dropping rapidly. People are seriously underestimating how far these things have already come.