The next logical step in the continuing, worrying and seemingly inevitable evolution of freely available 3d-printed weapons has arrived.
This time it's a rifle. And it fired 14 .22 calibre shots before cracking.
He used a Stratasys Dimension 1200ES industrial 3D printer to make the weapon but with the rapid increase in technology in this area it can't be long before guns can be made by widely available commercial models.
Thankfully there are limitations. The barrel need to be removed after every shot and there is the ever present threat the whole thing could explode in your hands.
Authorities and lawmakers are currently struggling to keep on top of the new technology and it is not even clear if a weapon that can effectively be downloaded into your living room can be regulated.