You must also pay the DOJ for the privelidge of registering all of your pistols. All of them however may come, unless they are considered "assault weapons" like any pistol with a magazine outside the pistol grip such as an AR, AK type of pistol or a tec 9 variant (which are banned by name anyways, but even if they were not they are banned by the magazine outside pistol grip feature.)
Even a clone of the old Mauser broomhandle of 1896 would be an assault weapon by CA law because it has a detachable magazine outside the pistol grip.
No magazines can be imported into the state if they hold over 10 rounds of ammunition.
You are more likely to find your rifles and shotguns are prohibited by features, or by name, than your pistols.
As for rifle's, if they are AR's then just get some 10 round mags and lock them in there and register the lower.
You cannot register assault weapons anymore, and unless they open a window for a weapon
not currently an assault weapon prior to becoming one, that has been the case for awhile.
Attempting to register one is a good way to admit on an official form to felony possession of one, and end up a felon and/or going to prison.
Also use your head, and don't take other's word for some things without double checking the statutes. Many clones of various firearms outlawed as assault rifles are legaly sold with various odd features in CA, or painstakingly assembled by people to comply with the law,
but they are intentionaly off list and imported into CA with that in mind by people that know the law.
However the exact same design from outside of the state may in fact be banned by name because it was not imported into the state with use in CA in mind. What that means is a "Colt" AR 15 might in fact be an illegal assault weapon even with features that make other identical models comply with CA law.
That is because it is banned by name, while another may not be.
So don't "just get some 10 round magazines and lock them in there" unless it is an off list model or you will be walking around with a felony assault weapon with locked magazines.