Two men are charged with using 3D printers and LEGO boxes to distribute 'machine gun conversion devices' across the U.S., ...

Think of yourself as making a toy LEGO gun, but instead of taking the parts from the LEGO box, you make the parts on your 3D printer based on your digital blueprint and you then assemble your gun ...

Two men from Colorado Springs are accused in a nationwide machine gun scheme. Federal agents say the pair was running an ...