https://www.cnbc.com/2018/07/24/with-3d-printing-the-downloadable-gun-becomes-available-august-1.html > Americans will soon be able to make 3D-printed guns from their home, widening the door to do-it-yourself versions of firearms including the AR-15 — the gun of choice in American mass shootings — that are untraceable with no background check required. > A settlement earlier this year between the State Department and Texas-based Defense Distributed will let the nonprofit release blueprints for guns online starting Aug. 1, a development hailed by the group as the death of gun control in the United States.