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.

Within an hour, Jessy offered us a Liberator or a Glock switch. A glock switch (also known as an auto sear) is a small, sometimes 3D-printed part that converts a pistol into an automatic weapon.

From these addresses, police retrieved a 3D printer and enough parts to readily assemble 16 Glock switches. They also allegedly found tools used to cut and modify quarters as part of the creation ...

He was confident that one of the weapons involved had a "switch ... "Glock switches" are becoming more common in their shooting investigations across the city. The parts can be easy to install and ...

The switches, which can be purchased for less than $20 or created on a 3D printer, allow the pistols to fire up to 1,200 rounds per minute, according to Platkin.

They also found a 3D printer in the living room and a casting mold and forging equipment in the carport next to the bedroom. It is the first federal Glock switch prosecution in Mobile’s federal ...

These switches are illegal. They’re classified as machine guns under federal law. But you can buy one online for 50 bucks or print one with a 3D printer in your garage.

After Soto Melendez removed the 3D printer from his apartment, Velazquez-Rodriguez wrote a follow-up message saying, "Someone hit me with the switch and found the broken one, that's why I told you ...

Officials said switches are illegally imported from overseas or 3D-printed locally. Because the devices can be made from plastic on a 3D printer, it means the files to make them can easily be ...

The auto sear, or “Glock switch,” converts a handgun into a weapon that fires 120 rounds a minute. The lawsuit wants Glock to reject such a capabiliity.

But some who make them illegally place Glock’s logo on the back. The devices cost about $20 and can also be made with a 3D printer.