You completely missed my point. The point wasn't that AK-47=early muzzle-loading rifle. The point was that it was easy to see that weapon technology was advancing, especially at that time (the first submarines were used in the revolutionary war, for example). Rifles were hard to make at the time, they had to be cleaned often, and they sucked to reload. But it was obvious that the technology would advance in the future to be more potent. The founding fathers did not write the amendment on the basis that every American should own a fully automatic rifle. They made it on the basis that a population that cannot defend itself from oppression is not free at all. There was no way to know what weapons would be used today; as I said before, the distinction of who has the right to bear which specific arms was left to later leaders to decide.
If you want to be as literal as possible with drawing your conclusions (as it seems to be), then you should replace that AK-47 picture earlier in the thread with one of an F-22 or a minigun.