A small but growing number of American firearm enthusiasts are joining RedNote, an app known in China as Xiaohongshu, in an effort to teach native users how to build 3D-printed guns. One such advocate ...

3D-printed guns could become "the weapon of choice" for criminals and violent extremists around the world, an expert has told the BBC. These DIY, untraceable firearms have been recovered in several ...

A special agent with the Pennsylvania attorney general’s office demonstrates how to assemble a ghost gun. Built in about an hour, the weapon was fully functional. (NBC News) Police investigating the ...

NEW YORK (WABC) -- In just hours - and for a few hundred dollars, you could make a real gun in your house that is untraceable - and nearly 100 percent polymer. It can all be made on a 3D printer -- ...

For decades, America's detectives have made breakthroughs in crime using gun traces. A homicide investigator typically uses ballistics and serial numbers of weapons checked via a vast network of gun ...

At long last, someone other than Defense Distributed has taken the group's 3D-printable design and turned it into a working firearm and fired it. But, and I cannot emphasize this enough, this gun is ...