One thing I noted in another thread on this is that the combination of the past law declaring .177 caliber bb guns with a velocity over 700?(or thereabouts) and .22 caliber plus airguns as firearms and then defining ghost guns as any firearm not marked by a federal firearms manufacturer they have effectively banned a whole swath of airguns with this as ghost guns.
Then there are the clauses that depend on ATF definitions that can change at a whim so if they ever decide to change their mind on what a grandfathered firearm is (say, for example, deciding that AR uppers are now actually firearms) then everyone in the state that owns whatever is now defined as a firearm is instantly guilty of committing a felony with absolutely no recourse since there is no grace period to account for things like that happening, not that most people would even know they had to or would be able to even if they wanted.
Just food for thought for anyone researching into the lawsuit.