Penal Code section 30400

(a)

Except as provided in subdivision (b) and in Section 30420, or except by operation of law, it shall be unlawful for a person to purchase, sell, offer to sell, or transfer ownership of any firearm precursor part in this state that is not a federally regulated firearm precursor part.

(b)

This section does not apply to either of the following:

(1)

The purchase of a firearm precursor part that is not a federally regulated firearm precursor part by a federally licensed firearms manufacturer or importer, or by a federal licensee authorized to serialize firearms.

(2)

The sale, offer to sell, or transfer of ownership of a firearm precursor part that is not a federally regulated firearm precursor part to a federally licensed firearms manufacturer or importer, or to a federal licensee authorized to serialize firearms.

(c)

A violation of this section is a misdemeanor punishable by imprisonment in a county jail not exceeding six months, by a fine not exceeding one thousand dollars ($1,000), or by both that fine and imprisonment.

Source: Section 30400, https://leginfo.­legislature.­ca.­gov/faces/codes_displaySection.­xhtml?lawCode=PEN§ionNum=30400.­ (updated Jan. 1, 2024; accessed Jun. 25, 2025).

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Verified:
Jun. 25, 2025

§ 30400's source at ca​.gov