NYSRPA v. Bruen. Recent SCOTUS decision that not only got rid of the two step interest balancing judicial precedent, but also noted that the 2A is protected hlby historical analogs to the revolutionary period.

Show me a mag ban from pre civil war era?

The tl;dr is unless there were analogous gun laws on the books when the constitution was drafted/ratified, the gun law is unconstitutional.

That means no more AWBs or Mag bans in the near future, but the courts move at a snails pace.