I'm for a lot more gun control than what we have today, but it's "the right of the people" in the text.
[As a necessity for a free state, A well trained and in good working order group of able bodies citizens capable of fight for defense of self and state, is required], the right of the people to keep and bear arms shall not be infringed.
Militia is just the people. Oxford 1800s has well-regulated to mean “in good working order”.