Many FFL-holder's in California will only receive a firearm from someone with an FFL. It's true that, by law, FFL to FFL is only REQUIRED for pistols, the AFT and some inspectors from the Cal DOJ have harassed California FFL-holder's if they don't have a copy of an FFL for any firearm sent to them --- some FFL-holders have caved in as they don't want to put up with multiple inspections and inventory checks.