I don't live in CA, but I wasn't aware of this provision. Is it true that an official can visit your home like this??
I'm not sure. If its registered with the ATF as an AW, I don't think they have the authority...
Anything with a bullet button is treated like a hunting rifle (no one cares)
The only ones I can think of is the SAs that were banned in 2000 but still weren't ATF weapons.