Fingerprinting in 3D printing could curb ghost guns, yet raises debates over privacy, regulation, and enforcement on personal ...

In the wake of Luigi Mangione’s alleged killing of a health care CEO with a partially 3D-printed pistol, we built and tested the exact same model of weapon ourselves. And it was entirely legal.

An island resident designed and made a 3D-printed gun, an example of how enthusiasts abroad embrace firearms technology nurtured in the United States.

The design of the gun police say they found on the alleged UnitedHealthcare CEO’s killer—the FMDA or “Free Men Don’t Ask”—was released by a libertarian group.

A 3D printing services company has demonstrated the ability to print a fully-functional .45 caliber, semi-automatic pistol.

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.

A Kingston man was arrested on multiple gun charges after authorities found a 3D printer, an AR-style rifle, and more evidence in his home, police said.

A Houston man on Saturday sold dozens of homemade 3-D printed guns to the city at its first-ever gun buyback event, Fox 26's Matthew Seedorff reported.