Assembly of Firearms

Cal. PEN § 29186

California Statutes

(

a) It is unlawful to knowingly or willfully cause another person to engage in the unlawful manufacture of firearms, or to knowingly or willfully aid, abet, promote, or facilitate the unlawful manufacture of firearms. (

b) For the purposes of this section, the “unlawful manufacture of firearms” includes any of the following:

(1) The manufacture of a firearm by a minor, or by a person who is prohibited from owning or possessing firearms under California law.

(2) The manufacture of four or more firearms within the state in the same calendar year by an individual who is not licensed to manufacture firearms pursuant to California law, in violation of

Section 29010.

(3) The manufacture of any firearm using a three-dimensional printer or computer numerical control (CNC) milling machine by an individual who is not licensed to manufacture firearms pursuant to California law, in violation of

Section 29185.

(4) The manufacture of a firearm by a person who is not a federally licensed firearms manufacturer, for the purpose of selling or transferring ownership of that firearm to another person who is not a federally licensed firearms manufacturer, in violation of subdivision (

d) of

Section 29180.

(5) The manufacture of a firearm for the purpose of selling, loaning, or transferring the firearm to another person, with the intent to complete the sale, loan, or transfer without a required background check on the transferee initiated by a licensed firearms dealer, in violation of

Section 27520.

(6) The manufacture of any of the following: (

A) Assault weapons or .50 BMG rifles, in violation of

Section 30600. (

B) Firearms that are not immediately recognizable as firearms, in violation of

Section 24510. (

C) Firearms that are not imprinted with a valid state or federal serial number or mark of identification, in violation of subdivision (

f) of

Section 29180. (

D) Large-capacity magazines or large-capacity magazine conversion kits, in violation of

Section or 32311. (

E) Machineguns, in violation of

Section 32625. (

F) Multiburst trigger activators, in violation of

Section 32900. (

G) Short-barreled rifles or short-barreled shotguns, in violation of

Section 33215. (

H) Undetectable firearms, in violation of

Section 24610. (

I) Unsafe handguns, in violation of

Section 32000. (

J) Zip guns, in violation of

Section 33600. (

K) Any other weapon defined as a “generally prohibited weapon” under

Section 16590. (

c) A violation of this

section is a misdemeanor.

Document details

CollectionCalifornia Statutes
CitationCal. PEN § 29186
Date2026-01-01
Typestatute
Languageen
SourceCA_STAT
IdentifierPEN29186.20256366

Assembly of Firearms

Cal. PEN § 29186

California Statutes

Assembly of Firearms

Cal. PEN § 29186

California Statutes

(

a) It is unlawful to knowingly or willfully cause another person to engage in the unlawful manufacture of firearms, or to knowingly or willfully aid, abet, promote, or facilitate the unlawful manufacture of firearms. (

b) For the purposes of this section, the “unlawful manufacture of firearms” includes any of the following:

(1) The manufacture of a firearm by a minor, or by a person who is prohibited from owning or possessing firearms under California law.

(2) The manufacture of four or more firearms within the state in the same calendar year by an individual who is not licensed to manufacture firearms pursuant to California law, in violation of

Section 29010.

(3) The manufacture of any firearm using a three-dimensional printer or computer numerical control (CNC) milling machine by an individual who is not licensed to manufacture firearms pursuant to California law, in violation of

Section 29185.

(4) The manufacture of a firearm by a person who is not a federally licensed firearms manufacturer, for the purpose of selling or transferring ownership of that firearm to another person who is not a federally licensed firearms manufacturer, in violation of subdivision (

d) of

Section 29180.

(5) The manufacture of a firearm for the purpose of selling, loaning, or transferring the firearm to another person, with the intent to complete the sale, loan, or transfer without a required background check on the transferee initiated by a licensed firearms dealer, in violation of

Section 27520.

(6) The manufacture of any of the following: (

A) Assault weapons or .50 BMG rifles, in violation of

Section 30600. (

B) Firearms that are not immediately recognizable as firearms, in violation of

Section 24510. (

C) Firearms that are not imprinted with a valid state or federal serial number or mark of identification, in violation of subdivision (

f) of

Section 29180. (

D) Large-capacity magazines or large-capacity magazine conversion kits, in violation of

Section or 32311. (

E) Machineguns, in violation of

Section 32625. (

F) Multiburst trigger activators, in violation of

Section 32900. (

G) Short-barreled rifles or short-barreled shotguns, in violation of

Section 33215. (

H) Undetectable firearms, in violation of

Section 24610. (

I) Unsafe handguns, in violation of

Section 32000. (

J) Zip guns, in violation of

Section 33600. (

K) Any other weapon defined as a “generally prohibited weapon” under

Section 16590. (

c) A violation of this

section is a misdemeanor.

Document details

CollectionCalifornia Statutes
CitationCal. PEN § 29186
Date2026-01-01
Typestatute
Languageen
SourceCA_STAT
IdentifierPEN29186.20256366