Calibound AR15...
California can indeed have jurisdiction over commerce that runs into it. You can't send illegal things from outside CA into CA. Many states prosecute out-of-that-state vendors for shipping, things like liquor directly to consumers. California Air Resources Board bans advertising aftermarket automotive parts into CA without text "Not legal for sale or use on pollution-controlled motor vehicles", etc. - and when such parts are shipped in without this warning, these outside-CA companies get busted.
But, saying that, and reading the specific exemption of PC 12280(a) and (b) - which includes the exclusionary text, "Any person who, within this state, ..." AND combined with the Harrott decision which says that guns are banned by name if and only if they are first listed by DOJ in their Roster (which is also posted to Calif Code of Regulation, it's all moot.
Many of these companies are relying on phone contact with DOJ agents/clerks, who are telling vendors outside CA that it's illegal when it isn't. These conversations bring up Kasler but don't mention Harrott - but when these same folks talk to Californians that know the law, they fess up and acknowledge legality.
Bill Wiese
San Jose, CA