If they take away the gun, those that wish to be armed will carry a knife, take away the knife, and they will use scissors, take away the scissors, they will use a baseball bat....etc.
The whole school weapon ban is garbage becasue it does not address the problem, and it leaves the asaulted unable to defend himself (or herself) What I saw in schools when I was a kid (50's) is no different than today...(and in the 50's you could take a rifle or shotgun to school) Bullies will be bullies, until someone puts them in their place. Also, the bullies and their buddies would never attempt to bully the kids that had any method of defending themselves.
I don't ever remembering anyone getting hurt by a gun in school. They were always put in the corner until class was out.