The Italian TV series Gomorra tells the story of a member of the famous crime syndicate.
In their second season of the intros features the production process of a 3D printed pistol that looks a lot like the Liberator. The Liberator was the first 3D printed pistol that was able to shot a bullet.
It was designed by Cody Wilson and distributed till taken offline by the US government shortly after. It was downloaded more than 100.000 times. Since than the controversy about 3D printed weapons lived on.
If and how the 3D printed pistol is used in the TV series stays in the clouds. You can watch the 3D printing process in the (spoiler free) intro of Gomorra: