Well regulated against who?

"A well regulated Militia, being necessary to the security of a free State,.."

The intent was to protect the 'people' from the police? OK, I can by that. The well regulated police is restricted from shooting at whim.

The rest of it is duplicated nonsense since the freedom to trade and the necessity of manufacturing arms for a militia are guaranteed elsewhere. The right if private ownership being a necessity, without the second part, implies the private ownership is well regulated. Well regulated being the dominant theme of gun ownership, from public to private militia.

If the original intent was personal unregulated freedom it was because of the technology at the time. We still grandfather in single shot muzzle loaders, it is immaterial. We still allow personal ownership of a truck load of arms, they have to be shipped.