In the wake of Luigi Mangione’s alleged killing of a health care CEO with a partially 3D-printed pistol, we built and tested ...

“I was shocked that it was 3D printed, and surprised it was such ... That’s a variant on the Glock FMDA 19.2 model, released by the same open-source collective where he uploads his designs ...

The FMDA 19.2 model, released by a group originally ... gun model to be considered the most practical and reliable 3D-printed Glock design available at the time it was released three years ago.

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 ... appears to be a Glock-19, a 9-millimeter semiautomatic pistol used ...

Also called a "chip" or "auto sear," it's a small device that gets installed on the back of a Glock handgun ... illegally imported from overseas or 3D-printed locally. Because the devices can ...