C.R.S. Section 18-12-301
Definitions

As used in this part 3, unless the context otherwise requires:

(1)

“Bureau” means the Colorado bureau of investigation created and existing pursuant to section 24-33.5-401, C.R.S.

(2)

Intentionally left blank —Ed.

(a)

“Large-capacity magazine” means:

(I)

A fixed or detachable magazine, box, drum, feed strip, or similar device capable of accepting, or that is designed to be readily converted to accept, more than fifteen rounds of ammunition;

(II)

A fixed, tubular shotgun magazine that holds more than twenty-eight inches of shotgun shells, including any extension device that is attached to the magazine and holds additional shotgun shells; or

(III)

A nontubular, detachable magazine, box, drum, feed strip, or similar device that is capable of accepting more than eight shotgun shells when combined with a fixed magazine.

(b)

“Large-capacity magazine” does not mean:

(I)

A feeding device that has been permanently altered so that it cannot accommodate more than fifteen rounds of ammunition;

(II)

An attached tubular device designed to accept, and capable of operating only with, .22 caliber rimfire ammunition; or

(III)

A tubular magazine that is contained in a lever-action firearm.

Source: Section 18-12-301 — Definitions, https://leg.­colorado.­gov/sites/default/files/images/olls/crs2024-title-18.­pdf (accessed May 26, 2025).

18–12–101
Peace officer affirmative defense - definitions 18–12–102
Possessing a dangerous or illegal weapon - affirmative defense - definition 18–12–103
Possession of a defaced firearm 18–12–103.5
Defaced firearms - contraband - destruction 18–12–104
Defacing a firearm 18–12–105
Unlawfully carrying a concealed weapon - unlawful possession of weapons 18–12–105.5
Unlawfully carrying a weapon - unlawful possession of weapons - school, college, or university grounds 18–12–105.6
Limitation on local ordinances regarding firearms in private vehicles 18–12–106
Prohibited use of weapons - definitions 18–12–106.5
Use of stun guns 18–12–107
Penalty for second offense 18–12–107.5
Illegal discharge of a firearm - penalty 18–12–108
Possession of weapons by previous offenders 18–12–108.5
Possession of handguns by juveniles - prohibited - exceptions - penalty 18–12–108.7
Unlawfully providing or permitting a juvenile to possess a handgun - penalty - unlawfully providing a firearm other than a handgun to a juvenile - penalty 18–12–109
Possession, use, or removal of explosives or incendiary devices - possession of components thereof - chemical, biological, and nuclear weapons - persons exempt - hoaxes 18–12–110
Forfeiture of firearms 18–12–111
Unlawful purchase of firearms 18–12–111.5
Unlawful conduct involving an unserialized firearm, frame, or receiver - exceptions - penalties - authority to serialize a firearm 18–12–112
Private firearms transfers - sale and purchase - background check required - penalty - definitions 18–12–112.5
Firearms transfers by licensed dealers - sale and purchase - background check required - penalty - definitions 18–12–113
Failure to report a lost or stolen firearm - exception 18–12–114
Secure firearm storage required - penalty - exceptions 18–12–115
Waiting period for firearms sales - background check required - penalty - exceptions 18–12–201
Legislative declaration 18–12–202
Definitions 18–12–203
Criteria for obtaining a permit 18–12–204
Permit contents - validity - carrying requirements 18–12–205
Sheriff - application - procedure - background check 18–12–206
Sheriff - issuance or denial of permits - report 18–12–207
Judicial review - permit denial - permit suspension - permit revocation 18–12–208
Colorado bureau of investigation - duties 18–12–209
Issuance by sheriffs of temporary emergency permits 18–12–210
Maintenance of permit - address change - invalidity of permit 18–12–211
Renewal of permits 18–12–212
Exemption 18–12–213
Reciprocity 18–12–214
Authority granted by permit - carrying restrictions - local authority 18–12–215
Immunity 18–12–301
Definitions 18–12–302
Large-capacity magazines prohibited - penalties - exceptions 18–12–303
Identification markings for large-capacity magazines - rules 18–12–401
Definitions 18–12–402
Retail dealers - record - inspection 18–12–403
Record - failure to make - penalty 18–12–404
Jurisdiction - county courts 18–12–405
Locking device required - penalty 18–12–501
Background checks at gun shows - penalty 18–12–502
Records - penalty 18–12–503
Fees imposed by licensed gun dealers 18–12–504
Posted notice - penalty 18–12–505
Exemption 18–12–506
Definitions 18–12–507
Appropriation 18–12–508
Effective date

Current through Fall 2025

§ 18-12-301. Definitions's source at colorado​.gov