Originally Posted by Death March
...But the whole going to 500 plus to me is alittle much as it now would become something you have to register as a Firearm would it not...
No, you wouldn't. There's 2 parts to that ruling. The part most folks don't get is that the projectile must carry a certain energy. Airsoft BBs don't come close to the requirement, so there's no registration necessary.
*edit: Crap, for some reason my browser didn't show the other responses. Oh well. Time for a new computer.