For the last hour, in a backroom of a gun range in Arabi, Louisiana, I’ve been building Luigi Mangione’s gun. Well, not his, in the literal sense. The not-quite-finished firearm in my hands is very ...

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 ...

Once police released details on the arrest of the suspected shooter of UnitedHealthcare CEO Brian Thompson, internet sleuths identified the weapon used as a Chairmanwon V1, a version of a popular ...

The world’s biggest social media sites are home to thousands of 2nd Amendment devotees who believe anyone should be able to use a 3D printer to build their own gun. Meta, Discord and the DOJ are ...

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 ...

Corrections and clarifications: A previous version of this story indicated the 3D Printed Gun Safety Act of 2023 had been passed. It has only been introduced. A certain weapon is under a national ...

This story was originally published by The Trace, a nonprofit newsroom covering gun violence. Subscribe to its newsletters. For decades, weapons manufacturing has been the domain of arms industry ...