Armalite AR-15 (Picture I) https://kirjabloggaus.blogspot.com/ Kimmo Huosionmaa The composite made pistols are the very good way to get bad weapons, but as you might understand, even flare guns, what are sold to free time sailors are dangerous in wrong hands. If somebody shoots another person with an emergency rocket that causes bad injuries. But those flare guns can shoot also shotgun ammunition, but those are single-use solutions for experimental use. Those composite weapons are the really bad thing, but if the user is some kind of drug dealer or robber, those people would use this kind of single used weapons in their illegal actions. But when we are talking about people, who have technical skills and motive to make a different kind of things, those persons can modify the MIG welding machine to the 3D printer in theory quite easily. They must just take the controlling circuit from the standard 3D-printer and then connect it to the welding machine, and then they mus...