I feel for you guys in liberal land.
Pot is (or will be) legal but constitutionally-protected guns are illegal.
Which guns are constitutionaly protected and which aren’t?
Firearms are constitutionally protected - ALL firearms. The Second Ammendment didn't specify any restrictions. (In fact, a simple reading of it states that there are NO restrictions at all). It's liberal interpretations, an overreaching judiciary, and sad to say ignorance or laziness on the part of the average American citizen that has allowed illegal restrictions.
New Jersey is now front and center with their 10-round mag limit law. Police are saying they may go door-to-door confiscating these now illegal devices - which were legally obtained by law abiding citizens. And they will shoot anyone who resists.
No grandfathering, anti-Constitutional action by the state. It remains to be seen how many law enforcement officers take part in this unlawful decree - and how many die as a result of resistance.