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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 the exact same weapon ourselves—and test-fired it.

Just like the Glock-style handgun I would construct in Louisiana a decade later, that rifle was a “ghost gun” in the sense that it had no serial number and was built entirely in private, without any background check, without showing anyone ID, and without making any government agency aware of its existence. I spoke to digital gunsmiths in the days after that revelation, and they identified the alleged murder weapon specifically as a variation on a printable, Glock-style frame known as the FMDA 19.2—an acronym for the libertarian slogan “Free men don’t ask”—released online by a gun-printing group called the Gatalog. To comply with the NFA, Reeves’ team at the gun range had also registered it on a government website, added a serial number engraved on a washer at one end, and wrapped it in black hockey tape to match the one prosecutors say was found in Mangione’s backpack.

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