I have seen in a vid, that famas whas in the game, but i dint recognize
more of them.... do any1 know aboit more weps????

No real weapons are in the game. They are based on real ones though.

http://brink.wikia.com/wiki/Weapons (Brink weapons that are confirmed) Note: Some information might be outdated.

http://www.gamesas.com/index.php?/topic/1143894-brink-weapons/ (List of real world counterparts of the weapons in brink)

Dysfunkshion beat me to it

Guess that answers the question