A bit of reading about how the IRA dealt with police and military forces is a clue into how this confiscation business might unfold for the confiscators...
It will/would not be pretty...
Other original Nazis (and also commies) did gun control. This is where sorozNazi learned his moves. ( aBut America has a different history and the American citizens know better than to comply with bullsheet dictators like any new hitlers or Stalins ( king George tried to do it to America and he found out that Americans are a far differEnt breed)