The Federalist Papers are a good way to see what the founders were thinking about but the Constitution is the law of the land.
I would be interested in your discussion of the words “bear arms” in this context. The verb “bear” seems the word least scrutinized in 2nd amendment discussions. “Keep”, “shall not be infringed” get discussed all the time.
The current definition seems to be that to “bear” something indicates that it can be carried or conveyed.