I got into an argument about gun control in the United States and the person I was arguing with brought up that the Nazis would never have risen to power so easily if the Weimar Republic didn't have such strict gun control laws and the people were armed. What he was saying is that the public needs firearms to defend themself from tyranny and he brought up some other examples of governments oppressing or murdering its own people which didn't have guns.

Now I know that the Nazis were actually democratically elected and their ideology and world view were well known to the German public at that time and accepted by it. And I also know that this matter isn't that simple, since a military has much more things than just guns that make it powerful. But I was wondering if there are actual instances in history that support this argument? Were there peoples effectively defending themself against government opression because they had and used the right to own firearms?