G36c Mag questions

[Mister Cak]

So I recently acquired a couple broken mags,
they are high cap G36c mags of an unknown branding.
It is seemed and plastic with no visible screws

Once of them has a screw, and what looks like a plate, and a gear about half the size of the wind (Metal, Metal, Plastic) loose in the well. So I am pretty sure that is a done deal.

However the other one, loads and feeds properly but when connected to the gun only the first BB or two load, which led me to believe it had something to do with the spring in the mag, however I know nothing about airsoft mags. I tried to take it apart but saw no way to do so. It may also be relevant that it was loaded with what look like seemed .12s some of them clearly deformed/broke in half, I am not sure if one shard could have jammed down the spring or something



Anyone have any ideas?

[Dominum]

Either a BB is jammed, or the spring is broken and not pushing them up. Does it retain tension when you wind it like the other one? Are you able to remove all the BBs so as to make there is not one jammed in it anywhere?

[Mister Cak]

I can remove all the BBs, and I can wind the BBs up, but they do not feed into the gun.