I think 87ConquestTsis comment was a quote from the new Grand Theft Auto game from Ammunations commercials
Newman,
Used AK’s and SKS can be had for about 200-450 at a gun show.
The Kel Tec Sub 2000 is $383 new from kel tec. Uses 9mm ammo, you can buy it if you tell them its for a carbine. I have a brick of it I haven’t used yet.
AR15s range in price. If you are looking for a cheap gun that is compact look at kel tec
They can jam occasionally if you dont clean it but if you clean them they are good to go.