Keeping your airsoft guns in your closet in res is a terrible idea. First off, you're keeping in in a building filled with hormone raging youth, at a school which has a reputation for crime due to its vicinity to jane/finch street.
you say you'll keep it safe, but shit happens, and if administration finds out you're keeping it inside your dorm they're gonna kick you out.
Find a GOOD friend who lives at home, and ask if you can store it at their place. I highly don't suggest keeping it on campus.
Welcome to the GTA airsoft scene. Hopefully we'll be as fun as back home.