The four rules are a good set of common sense declarations that every gun-owner should follow, but they have absolutely nothing to do with the 2nd Amendment.
But it happens to be covered by "the right of the people to keep and bear arms shall not be infringed" quite completely. A well-regulated militia is only one instance for why an armed populace is such a grand idea, and being a member of a militia was not needed in order to excercise the right because the right is centered on the individual, not the militia. The Founders made that clear in their writings.
The Second Amendment does not guarantee the right of CCW. Why? Because CCW does not contribute to a well-regulated militia.
But it happens to be covered by "the right of the people to keep and bear arms shall not be infringed" quite completely. A well-regulated militia is only one instance for why an armed populace is such a grand idea, and being a member of a militia was not needed in order to excercise the right because the right is centered on the individual, not the militia. The Founders made that clear in their writings.