Home of Rhett & Link fans - the Mythical Beasts!
I agree with Jack Stevenson. Completely.
I think the best gun for CQB is an AKS-74U which is An Ak-47/AK-74 with a short barrel. you can get it with a side folding stock or without one. I recommend one with a stock just incase you suddenly go from CQB to a longer distance
normally they run from the 350-440 fps range although the more expensive ones might be the upper 400s or even the 500s