> From a more protectionist standpoint, you could say that an AR-15 or an AK-47 will allow you to stand up against your government. This isn't really realistic, however - no civillian weapon, especially not a semi-automatic rifle, will reliably take care of a tank, fighter jet, drone or military robot. [0]

It gives you some leverage however if you need to get some ingredients for your IEDs.

A few guns might make the difference between efficient large scale killings like Auschwitz and a case where a large number of civilians get away and hide until the international community can come and help.