A majority of people supported the AWB. This is well documented in various polls done by both sides of the debate.
However, many of them didn't understand what the AWB was all about... a lot thought it banned machine guns.
Fortunately a very small but vocal group of gun owners got the point across to Congress, so it expired.
So my point is, most people don't know enough about guns and gun laws to have a meaningful opinion of gun control.