Today on the show, WIRED built and tested a 3D-printed pistol, the exact same model of the gun that Luigi Mangione allegedly used in the brutal killing of a health care CEO last year.

Military models are great 3D printing projects, even more so if they are somewhat functional. [Flasutie] took it a step further by engineering a 3D-printed howitzer that doesn’t just sit pretty ...

Some models — like the 3D-printed gun company Defense Distributed’s “Liberator” — can be made almost entirely on a 3D printer. Others require many additional parts, which are often metal.

Some models - like the 3D-printed gun company Defense Distributed's "Liberator" - can be made almost entirely on a 3D printer. Others require many additional parts, which are often metal.

3D printing is the process of building three-dimensional objects by layering materials using computer-aided design models, according to 3D printing company Formlabs.

BBC Trending has investigated the global spread of 3D-printed guns across social media platforms including Telegram, Facebook and Instagram, as well as websites offering how-to guides.

Department of Justice officials announced national efforts Friday to crackdown on 3D-printed devices to convert guns to fire fully automatic.

Homemade weapons have been around for centuries, but the appearance of 3D-printed firearms a decade ago revolutionized how guns are acquired and distributed on a global scale. My colleague and I ...

But 3D-printed guns vary a lot. Some models — like the 3D-printed gun company Defense Distributed’s “Liberator” — can be made almost entirely on a 3D printer. Others require many ...