eh...it's debatable, though your source quotes are appreciated. The way it's worded in the constitution hints at a militia as was known then, a body of people trained in arms to do battle. Not just the random populace w/o training and organization.
The Second Amendment of the United States Constitution reads: "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."
A well regulated militia, i.e. the people are the security of a “free” State. You see that as a national defense against other warring nations, when the Framers were specifically talking about internal government. You have to remember they had just won their freedom from a repressive government. They did not want a repeat of shackles they had just broken off.