I don't know. It does turn out that one can find guns if one needs them, legally or not, and revolution doesn't require a Constitutionally mandated right to keep and bear arms. Not that a tyrannical government would respect such a right anyway, unless they had the gun owners on their side. The only things guaranteed by the Second Amendment are a market for guns and some irreducible amount of societal gun violence.

Even in Japan, where the gun laws are so onerous even the Yakuza supposedly avoid dealing with them, that guy managed to build his own and shoot Abe Shinzo.

Meanwhile in the US that tree of liberty they love to go on about is getting real thirsty.