DIY - Homemade Airgun - Gotcha - Paintball Gun

Hi all this is my first DIY Project for you all.
If you have a ALDI in your Town or you can find a similar Air Pressur Sink Pipe Cleaner, like i use , go for it.
Sorry only German Text in Video, but Pics speaks for themself.
We are here in Berlin some Preppers and meeting us each Month. And what we put on Paper, we build later.
Any Question , please mail to me.
M.Abraham