It is the intention of the Legislature to occupy the whole field of regulation of the registration or licensing of commercially manufactured firearms as encompassed by the provisions of the Penal Code, and such provisions shall be exclusive of all local regulations, relating to registration or licensing of commercially manufactured firearms, by any political subdivision as defined in Section 1721 of the Labor Code.

“Large capacity magazine” means any detachable ammunition feeding device with the capacity to accept more than 10 rounds, but shall not be construed to include any of the following:

1. A feeding device that has been permanently altered so that it cannot accommodate more than 10 rounds:
2. A .22 caliber tube ammunition feeding device; or
3. A tubular magazine that is contained in a lever-action firearm.

(c) Prohibition on Possession of Large Capacity Magazines.

1. No person, corporation, or other entity in the City may possess a large capacity magazine, weather assembled or disassembled.
2. Any person who, prior to the effective date of this chapter, was legally in possession of a large capacity magazine shall have 90 days from such effective date to do any of the following without being subject to prosecution:

• (A) Remove the large capacity magazine from the city;
• (B) Surrender the large capacity magazine to the Police Department for destruction; or
• (C) Sell or transfer the large capacity magazine lawfully in accordance with Penal Code 12020.

(a) 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 person in this state who manufactures or causes to be manufactured, imports into the state, keeps for sale, or offers or exposes for sale, or who gives, lends, buys, or receives any large-capacity magazine is punishable by imprisonment in a county jail not exceeding one year or imprisonment pursuant to subdivision (h) of Section 1170.

(b) 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, commencing July 1, 2017, any person in this state who possesses any large-capacity magazine, regardless of the date the magazine was acquired, is guilty of an infraction punishable by a fine not to exceed one hundred dollars ($100) upon the first offense, by a fine not to exceed two hundred fifty dollars ($250) upon the second offense, and by a fine not to exceed five hundred dollars ($500) upon the third or subsequent offense.

(c) A person who, prior to July 1, 2017, legally possesses a large-capacity magazine shall dispose of that magazine by any of the following means:

1. Remove the large-capacity magazine from the state.
2. Prior to July 1, 2017, sell the large-capacity magazine to a licensed firearms dealer.
3. Destroy the large-capacity magazine.
4. Surrender the large-capacity magazine to a law enforcement agency for destruction