Weapons made with 3-D printers could test gun-control efforts
3D can print a lower receiver for an AR-15. The printer uses plastic instead of ink, and the process takes about 10 hours.
The magical devices capable of printing prosthetics, violins and even aircraft parts have the potential, the president said, “to revolutionize the way we make almost everything.”
Forty miles away from the Capitol, in Glen Burnie, Md., Travis Lerol is proving Obama’s point — with guns.
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