(

a) As used in this part, “firearm” means a device, designed to be used as a weapon, from which is expelled through a barrel, a projectile by the force of an explosion or other form of combustion. (

b) As used in the following provisions, “firearm” includes the frame or receiver of the weapon, including both a completed frame or receiver, or a firearm precursor part:

(1) Section 136.2.

(2) Section 646.91.

(3) Sections and 16517.

(4) Section 16550.

(5) Section 16730.

(6) Section 16960.

(7) Section 16990.

(8) Section 17070.

(9) Section 17310.

(10) Sections to 18500, inclusive.

(11) Section 23690.

(12) Sections to 23925, inclusive.

(13) Commencing on July 1, 2026, Sections to 25275, inclusive.

(14) Sections to 26590, inclusive.

(15) Sections to 27140, inclusive.

(16) Sections to 28490, inclusive.

(17) Sections to 29150, inclusive.

(18) Section 29185.

(19) Sections to 29750, inclusive.

(20) Sections to 29905, inclusive.

(21) Sections to 30165, inclusive.

(22) Section 31615.

(23) Sections to 31830, inclusive.

(24) Sections to 34370, inclusive.

(25) Sections 527.6 to 527.9, inclusive, of the Code of Civil Procedure.

(26) Sections to 8108, inclusive, of the Welfare and Institutions Code.

(27) Section 15657.03 of the Welfare and Institutions Code. (

c) As used in the following provisions, “firearm” also includes a rocket, rocket propelled projectile launcher, or similar device containing an explosive or incendiary material, whether or not the device is designed for emergency or distress signaling purposes:

(1) Section 16750.

(2) Subdivision (

b) of

Section 16840.

(3) Section 25400.

(4) Sections to 26025, inclusive.

(5) Subdivisions (a), (b), and (

c) of

Section 26030.

(6) Sections to 26055, inclusive. (

d) As used in the following provisions, “firearm” does not include an unloaded antique firearm:

(1) Section 16730.

(2) Section 16550.

(3) Section 16960.

(4) Section 17310.

(5) Subdivision (

b) of

Section 23920.

(6) Section 25135.

(7) Chapter 6 (commencing with

Section 26350) of Division of Title 4.

(8) Chapter 7 (commencing with

Section 26400) of Division of Title 4.

(9) Sections to 26588, inclusive.

(10) Sections to 26915, inclusive.

(11) Section 27510.

(12) Section 27530.

(13) Section 27540.

(14) Section 27545.

(15) Sections to 27585, inclusive.

(16) Sections to 29150, inclusive.

(17) Section 29180. (

e) As used in Sections and 34010, “firearm” does not include a destructive device. (

f) As used in Sections and 24680, “firearm” has the same meaning as in

Section of Title of the United States Code. (

g) As used in Sections to 29184, inclusive, “firearm” includes the completed frame or receiver of a weapon.