Somebody asked me for details on my earlier blog post about travelling through CA that high capacity mags (normal mags to most people) are classified by California Penal Code (recently) as a "public nuisance" and subject to confiscation. These are changes for 2012.
Here are a couple of sources:
and you might be surprised what else is on the list:
California Penal Code Section 18010
Legal Research Home > California Laws > Penal Code > California Penal Code Section 18010
(a) The Attorney General, district attorney, or city
attorney may bring an action to enjoin the manufacture of,
importation of, keeping for sale of, offering or exposing for sale,
giving, lending, or possession of, any item that constitutes a
nuisance under any of the following provisions:
(1) Section 19290, relating to metal handgrenades.
(2) Section 20390, relating to an air gauge knife.
(3) Section 20490, relating to a belt buckle knife.
(4) Section 20590, relating to a cane sword.
(5) Section 20690, relating to a lipstick case knife.
(6) Section 20790, relating to a shobi-zue.
(7) Section 20990, relating to a writing pen knife.
(8) Section 21190, relating to a ballistic knife.
(9) Section 21890, relating to metal knuckles.
(10) Section 22090, relating to a nunchaku.
(11) Section 22290, relating to a leaded cane or an instrument or
weapon of the kind commonly known as a billy, blackjack, sandbag,
sandclub, sap, or slungshot.
(12) Section 22490, relating to a shuriken.
(13) Section 24390, relating to a camouflaging firearm container.
(14) Section 24490, relating to a cane gun.
(15) Section 24590, relating to a firearm not immediately
recognizable as a firearm.
(16) Section 24690, relating to an undetectable firearm.
(17) Section 24790, relating to a wallet gun.
(18) Section 30290, relating to flechette dart ammunition and to a
bullet with an explosive agent.
(19) Section 31590, relating to an unconventional pistol.
(20) Section 32390, relating to a large-capacity magazine.
(21) Section 32990, relating to a multiburst trigger activator.
(22) Section 33290, relating to a short-barreled rifle or a
(23) Section 33690, relating to a zip gun.
(b) These weapons shall be subject to confiscation and summary
destruction whenever found within the state.
(c) These weapons shall be destroyed in the same manner described
in Section 18005, except that upon the certification of a judge or of
the district attorney that the ends of justice will be served
thereby, the weapon shall be preserved until the necessity for its
and here is what Section 32390 says (just a circular reference):
Except as provided in Article 2 (commencing with Section
32400) of this chapter and in Chapter 1 (commencing with Section
17700) of Division 2 of Title 2, any large-capacity magazine is a
nuisance and is subject to Section 18010.