Whats Your Favourite Gun?

Hey there, i wanted to know what gun people liked for real life and games such as mw2, black ops, wolfteam, combat arms, wolfenstien and other games. So tell me your favourite gun. Fight over which one is the best and say why. I have none at the moment. Lets hope someone can convince me that the gun they are talking about is a really good gun and i might try it out if it’s for a game and/or i might check it out more on the Internet see if it is actually good.

I also know that the powerfullest and deadliest gun is the AA-12. It is a shotgun that is very fast and very strong. It has a few different type of bullets for different things such as armour piercing and explosive etc etc. Also a fact i found out about this gun is that the film called “The Expendables” is a long advertisement of that shotgun.

Anyway please comment away.