To be honest, this is the first time i owned a glock, and i'm not too familiar in how to clean it. I took it apart, and tried to find out where it might be in contact with anything to "catch", but i wasn't able to find out.
As for lubricating, I'm planning on buying the gas adapter/liquid silicone, but i'm not sure where to lubricate, or how exactly to clean it. Although i found you can google it, i'm not sure how thorough it is, since they're tutorials are most probably based on the real glock series. Maybe someone could provide tips?
i'm hoping with my amateur knowledge, i won't break my glock, and will be able to fix and keep this one for a long time