2021 Colorado Code
Title 18 - Criminal Code
Article 12 - Offenses Relating to Firearms and Weapons
Part 3 - Large-Capacity Ammunition Magazines
§ 18-12-303. Identification Markings for Large-Capacity Magazines - Rules

1. A large-capacity magazine that is manufactured in Colorado on or after July 1, 2013, must include a permanent stamp or marking indicating that the large-capacity magazine was manufactured or assembled after July 1, 2013. The stamp or marking must be legibly and conspicuously engraved or cast upon the outer surface of the large-capacity magazine.
2. The bureau may promulgate such rules as may be necessary for the implementation of this section, including but not limited to rules requiring a large-capacity magazine that is manufactured on or after July 1, 2013, to bear identifying information in addition to the identifying information described in subsection (1) of this section.
3. A person who manufactures a large-capacity magazine in Colorado in violation of subsection (1) of this section commits a class 2 misdemeanor and shall be punished in accordance with section 18-1.3-501.

History. Source: L. 2013: Entire part added,(HB 13-1224), ch. 48, p. 146, § 1, effective July 1.

This section and §§ 18-12-301 and 18-12-302 represent a reasonable exercise of the state's police power and thus are constitutional because the discrete legislative purpose in enacting the statutes, to reduce the number of people who are killed or shot in mass shootings, lies within the state's police power; the statutes are reasonably related to the legitimate governmental purpose of reducing deaths from mass shootings; and limiting magazine size to fifteen rounds of ammunition does not unreasonably burden the right to self-defense. Rocky Mountain Gun Owners v. Polis, 2020 CO 66, 467 P.3d 314.