Looking over your post history, you've seemed to have developped a nasty streak of simply asking without looking. Play with the search options a bit, there is an insane amount of information here.
To access the advanced search options, just hit the search button without entering any text. You will be able to search by sub-section and other parameters.
This being said, you will not find a warm welcome to obtaining guns because of your very young age. The AV process and general minor ban is a community opted mesure, not an exterior requirement, so we follow it. Also, at 13, you cannot participate in any games.
I would advise against any further posts looking for help in getting a gun, you'll either be insulted or banned again.