"CA Compliant" in some instances means you have a rifle which can be restored to its original "assault weapon" configuration in about two minutes.
It's pretty amazing that attaching a three-ounce plastic pistol grip to your rifle could open one up to a felony prison sentence. The courts are moving, but very, very slowly.
Shhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...
The only difference is the Bullet Button, I mean “tool”.
They thought their “Law” would prevent you from removing the Magazine and force you to stop for a few minutes before you could reload.
Then the “tool” was redesigned. LOL
Once they figured that out, they changed the Law again in their attempt to make Patriotic Americans “Overnight Felons”. They never stop, so it’s best to just ignore them.
My Private Collection of Magpuls is somewhere around here...