“he Bill of Rights lays down limits on the powers of the monarch and sets out the rights of Parliament, including the requirement for regular parliaments, free elections, and freedom of speech in Parliament. It sets out certain rights of individuals including the prohibition of cruel and unusual punishment and reestablished the liberty of Protestants to have arms for their defence within the rule of law.”
Literally one of the first human rights bills in the world.
EDIT: this was literally a century before the usa was founded, oh and freedom to bear arms included all weapons the US military possessed, including cannons. Now i dont actually support ownership of artillery pieces in casual civilian hands, but your musket point is moot.