If you wish. I believe that no citizen should have such weapons as rocket-launchers, or RPGs, and other things on that line. I'm still on secure constitutional ground - rocket-propelled grenades can't really be classified as "firearms".
The definition of the word "arms" is anything that could be carried by the typical infantry soldier. There are grenade launchers that attach to M-16 rifles which are capable of being carried by soldiers. Therefore, citizens should have the right to own these.