Gun control opponents are busy wrapping themselves in the American flag, waving the Constitution and thumping their chests.
You can't just take the portion you agree with. Most accentuate the "right of the people to keep and bear arms shall not be infringed." However, the first portion of that states "A well regulated militia, being necessary to the security of a free state ..."
Regulation means rules. And who is in charge of making those rules?