So I had some issues finding info around this myself so I will list the things I learned.
So after I noticed that the .43g black bbs I got was magnetic.
And I played around with it for a bit I got the idea if it would be possible to make a gauss rifle or coil gun if you will.
And after what I have found I should be possible.
After all I could lift a barrel with 1 bb in it with a magnet form a harddrive.
So i live in a “smal” ish apartment whit 30m2 . So I dont have a loot of room to spare. So i made the best out of what i have.
I used half the wardrobe by the kitchen to store my rifles, clothes and everything airsoft related.
Note If you want to see the stats and parts if the rifles and pistols click on this ;link
here is some pictures of the layout.