3 ms·NY and CA have the most strict gun regulationsby groundzeros2015 9mo agoNY and CA have the most strict gun regulationsnamlem 9mo agoNJ and CA. You can't make guns at all in NJ, and you need a firearm permit to buy an airgun or bb gun.brewdad 9mo agoCombined they are home to 1 in 6 Americans so it's important info that applies to a lot of us.