The Second Amendment addresses what we now call arms. You should be aware that this was not done a few years ago but during the time of slavery. The real reason the Second Amendment was ratified, was to preserve the slave patrol militias in the southern states, which was necessary to get Virginia's vote for the constitution. Blacks outnumbered whites in large areas, and the state militias were used to both prevent and to put down slave uprisings. "A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed." Little did Madison realize that one day in the future weapons-manufacturing corporations, newly defined as "persons" by a Supreme Court (some have called dysfunctional), would use his slave patrol militia amendment to protect their "right" to manufacture and sell assault weapons used to murder schoolchildren.