We Made Luigi Mangione’s 3D-Printed Gun—and Fired It

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...

The ‘Ghost Gun’ Linked to Luigi Mangione Shows Just How Far 3D-Printed Weapons Have Come

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...