I have a pistol, FN-57, that holds 20 rounds in a standard double-stacked clip. It's very accurate...actually once used by the Secret Service. It's not an assault rifle, but I would pit myself against a guy carrying an AR-15 any day of the week. It's not the assault rifles or any rifles for that matter that is the problem. I can take a standard carbine with a 10 round clip and have just as much portability, have a duffle bag full of clips and have just as much firing capacity.
Folks, we have a MENTAL HEALTH ISSUE on our hands... Btw, Timothy McVeigh was not using an assault rifle.