MARTINSBURG, W.Va. – In the basement research lab of the agency that regulates America's firearms, two dozen 3D printers hummed, stringing thermoplastic filament into computer-designed patterns that ...

More than a decade after the advent of the 3D-printed gun as an icon of libertarianism and a gun control nightmare, police say one of those homemade plastic weapons has now been found in the hands of ...

Part of the gun that the police believe was used to kill the C.E.O. of UnitedHealthcare was made by a 3D printer using a popular design found online. By Thomas Gibbons-Neff and Aric Toler At first ...

"Sovereign citizens" and "doomsday preppers" are among hundreds arrested with 3D-printed firearms in a nationwide crackdown on illegal weapons. An Australian Border Force operation has led to the ...

A teenager in Detroit was arrested after his house was raided in a 3D-printed gun sting, CBS News reports, amid a federal crackdown into illegal weapons parts produced with consumer fabrication tech.