In 1791, the Second Amendment was written.

In 1847, the bullet was invented.

Thus, the Second Amendment only applies to muskets.

@Strandjunker If the Founding Fathers had an AR-15, I strongly suspect they would have used different language when writing the 2nd Amendment. But it was uncertainty about the future that led them to expect that the Constitution would be a living document that would keep up with the times. In that regard, we have utterly failed the great men who constructed our foundational instrument.