I understand automatics are illegal in CA
I'm seeing that gravity knives are illegal in California.
Automatics and gravity knives are illegal to carry on your person, or possess in the driver/passenger area of a vehicle if the blade is 2" or longer. But not illegal to have in your home, regardless of size.
*EDIT: I was originally of the opinion that the CJRB Pyrite met the definition of a gravity knife under California law, but upon further examination of both the knives and the law, I have changed my mind. I believe the presence of the thumb stud, combined with the closed-bias resistance created by the button lock exempts the CJRB Pyrite from the gravity knife definition.*
Now as far as what would happen if you got caught carrying a switchblade/gravity knife-
First, the chances of getting caught are likely extremely slim. And even if by some chance a cop discovered you were carrying one I doubt they would care. But if you want to know what a person in California would face if they were arrested and prosecuted for carrying a gravity knife with a blade 2" or longer, and the prosecutor really wanted to make an issue out of it, it goes like this-
First, you'd be arrested, taken to jail, booked, and be required to post bail if you want to get out, otherwise you stay in jail until your case is completed.
Assuming you have no criminal record-
It's a misdemeanor offense. You would be given the choice of going to trial or pleading guilty and accepting a plea bargain. The maximum sentence for carrying a "switchblade" in California is a $1000 fine and 6 months in jail (which typically gets cut in half for good behavior and overcrowding).
If you plead guilty you would be offered probation instead of jail and be required to pay the fine ($1000) and any "court costs". Probation for weapons violations typically last three years.
To be granted probation you would need to sign away your 4th Amendment Constitutional rights for the full term of your probation.
You would be prohibited from possessing any knives that your probation officer does not approve of for the term of your probation.
You would need to pay a probation fee. I don't know what it is now, but I know that about a decade ago it was $10 a month.
You would be subject to having your home, vehicle, and person searched by LEO's or your probation officer without consent, probable cause, or a warrant (you gave up your 4th Amendment).
You would not be able to travel out of your county for any reason without getting permission from your probation officer.
If you violate any terms of your probation you could be arrested and taken to jail, and then have the full original jail term imposed upon you (remember, you pleaded guilty to the original charge).
That's the jist of probation in California for a misdemeanor weapons violation. I'm probably forgetting something. Contrary to what some might believe, a misdemeanor is not the same as a speeding ticket. As I described, a misdemeanor conviction comes with real consequences, particularly for otherwise law-abiding people.
Of course if you choose to go to trial instead of pleading guilty and taking a plea, and if you are convicted, you go to jail.