Right to Bear Arms

What was the intention of the Founding Fathers when they chose those two words? Would they have supported citizens’ right to own rocket-propelled grenades or nuclear weapons?
If they had known that had known that, 240 years later, the moron here wearing a red baseball cap would be wielding a flame thrower, what do you think they might have said?

The interesting thing is that the 2nd Ammendment was meant to enable the local people to legally have muskets — and it didn’t really spell out for what.
So of these people want to hold to “the true meaning of the 2nd. Ammendment (accouding to them) — then the only firearms they could have would be of that period.
Every advancement would be illegal.