This is a holder for the Eastwood PCS-250 powder coating gun. It is designed to be held in a vice. Simply place it with the bottle or, when changing bottles, it can be stored in the holder. The switch is located in a hole, and the clamp can be attached to the holder.
Video Youtube in my channel https://youtu.be/TyVBnkFF_1g
The author marked this model as their own original creation.