Not in NY, no. They have a year to sell of their old 10 round mags to people out of state. I live in PA and you can purchase any weapon you like, well for now. There are no mag limits. We also have a very extensive background check for every weapon purchased. We have to fill out forms for every gun and two government forms for hand gun. Before these recent shootings I could go and buy a 90 round mag for my AR-15. Right now you can not even find AR parts let alone ammunition for these weapons. The makers of these guns and ammunition stopped producing them until they find out what the new laws will be.
I just do not understand why these politicians are not looking at the facts. You have Chicago and NYC, 2 of the top cities/states with the most extensive guns laws and guess what, they have the most gun related deaths. We don't live in a Utopia here and never will. There will always be despicable crimes no matter what laws they pass. Look at Australia, they nearly banned all guns and crime shot through the roof, no pun intended.