See my post above.
An AR15 is the compromise weapon that mass ownership allows a free people to have a fighting chance should the government unilaterally decide that the rules have changed. It can be used for other things but that is its main social utility. When government fails, when the courts fail, you have the 2nd amendment.
"But they couldn't just own cannons back then Crazy."
Yeah they could.
"Although I hesitate to bring this to President Biden’s attention, individuals and nonprofits own cannon today. In 2019, for example, Brown’s Company of Artillery fired for five hours in Lebanon … the one in Connecticut. And the Ancient and Honorable Artillery Company, a private artillery...
www.aier.org
"Well they just owned single shot muskets and rifles."
Which were the military rifles of their day. It is clear what was intended for the second by the quotes I posted. We have bargained that the populace do not have SAWs or M4's, but the AR15 is the compromise. The killing power is the point.