Switch that turns Glock pistol into mini-machine gun popping up in Chicago
It

s a tiny part that turns a Glock pistol into a mini-machine gun, capable of firing dozens of rounds within seconds. It

s not only dangerous, it`s illegal, and as WGN Investigates has learned, people in Chicago are buying them online.
https://youtube.com/watch?v=T7Qy8FSXuwE [Embed]