This sort of thing isn't exactly without precedent. Look at gun laws in CA: there are many types of firearms and firearm accessories which are legal in most of

This sort of thing isn't exactly without precedent. Look at gun laws in CA: there are many types of firearms and firearm accessories which are legal in most of the US but cannot be sold or possessed in California. Gun manufacturers have responded over the years by either pulling out of the state entirely, or producing California compliant versions of their products.