"Herbert Paulis" wrote in message ...
Technically I do have some doubts about how the rounds from the cartridges
not directly under the antenna can be fired using the antenna as a barrel?!?
The video is not very convincing ...

I'm not sure they are coming out the antenna. I suspect there are four
single shot chambers/barrels inside the top of the case.

This is why different buttons have to be pressed. The clip shows the casings
being retained in the same position as it was before it was fired.