The Constitution doesn't say anywhere that the government society has a different set of rights than the non-government society.
It is unarguable that every private citizen has every right to possess every weapon any agency in government can possess.
You have to get rid of the Constitution and the concept of civillian government to change that.
That's ok with me. If the police think the only thing they need to protect me is a .22 single-shot crack-barrel rifle, then let that be the case.
I guess police officers where you live in your imaginary world carry Bushmaster semi automatic rifles with 100 round clips.
The Second Amendment says you have the right to bear arms. Here's your musket. You now bear arms. Now STFU