Defective Portal 2 Turret

This is a defective turret from the game Portal 2. This is a normal turret that is missing the finished outer casing as seen in the game.

I am not the original designer. I found the source of this design over on 3D Warehouse created by "MaxCreeper99". https://3dwarehouse.sketchup.com/model/u28985045-8739-4201-8390-2b55e2b5409c/Portal-Defective-Turret-V20