Revolver security piece

This is a security piece for the new security approvals of the german shooters confederacy (Deutscher Schützenbund - DSB), in which you´ll have to cover all chambers of your revolver during transport or when laying your gun down. Who the f____ made this approval??
Due you don´t see if there are bullets in the chambers while they are covered with this damn thing, my design has hollow pins to go into the chambers, so you can see that they are empty. The red flag has a hole to mount an even bigger