Read the full stored bill text
Second Regular Session
Seventy-fifth General Assembly
STATE OF COLORADO
REVISED
This Version Includes All Amendments Adopted
on Second Reading in the Second House
LLS NO. 26-0213.01 Owen Hatch x2698 SENATE BILL 26-043
Senate Committees House Committees
State, Veterans, & Military Affairs State, Civic, Military, & Veterans Affairs
A BILL FOR AN ACT
CONCERNING THE REGULATION OF FIREARM BARREL TRANSFERS, AND,101
IN CONNECTION THEREWITH, CREATING A CRIMINAL PENALTY102
FOR THE UNLAWFUL SALE OF A FIREARM BARREL.103
Bill Summary
(Note: This summary applies to this bill as introduced and does
not reflect any amendments that may be subsequently adopted. If this bill
passes third reading in the house of introduction, a bill summary that
applies to the reengrossed version of this bill will be available at
http://leg.colorado.gov.)
The bill requires a firearm barrel to be sold or transferred in person
by a federally licensed firearm dealer. A person who is not a federally
licensed firearm dealer shall not possess a firearm barrel with the intent
to sell or transfer, or with the intent to offer to sell or transfer, the firearm
barrel. Unlawful sale of a firearm barrel and unlawful possession with
HOUSE
Amended 2nd Reading
March 19, 2026
SENATE
3rd Reading Unamended
March 2, 2026
SENATE
Amended 2nd Reading
February 27, 2026
SENATE SPONSORSHIP
Sullivan, Coleman, Cutter, Danielson, Jodeh, Kipp, Kolker, Wallace, Weissman
HOUSE SPONSORSHIP
Froelich and Brown,
Shading denotes HOUSE amendment. Double underlining denotes SENATE amendment.
Capital letters or bold & italic numbers indicate new material to be added to existing law.
Dashes through the words or numbers indicate deletions from existing law.
intent to sell a firearm barrel are each an unclassified misdemeanor.
A person must be 18 years old or older and legally allowed to
purchase a firearm under state and federal law to purchase a firearm
barrel, subject to certain exceptions.
The bill requires a federally licensed firearm dealer to record a sale
or transfer of a firearm barrel for at least 5 years.
The bill requires the Colorado bureau of investigation to create a
form for federally licensed firearm dealers to record a sale or transfer of
a firearm barrel.
Be it enacted by the General Assembly of the State of Colorado:1
SECTION 1. In Colorado Revised Statutes, add 18-12-118 as2
follows:3
18-12-118. Unlawful purchase or sale of a firearm barrel -4
penalty - definitions.5
(1) AS USED IN THIS SECTION , UNLESS THE CONTEXT OTHERWISE6
REQUIRES:7
(a) "FAMILY MEMBER" MEANS:8
(I) A PERSON RELATED BY BLOOD, MARRIAGE, OR ADOPTION;9
(II) A PERSON WHO HAS A CHILD IN COMMON WITH ANOTHER10
PERSON;11
(III) A PERSON WHO REGULARLY RESIDES OR REGULARLY RESIDED12
WITH ANOTHER PERSON WITHIN THE LAST SIX MONTHS;13
(IV) A DOMESTIC PARTNER;14
(V) A PERSON WHO HAS A BIOLOGICAL OR LEGAL PARENT-CHILD15
RELATIONSHIP WITH ANOTHER PERSON , INCLUDING STEPPARENTS AND16
STEPCHILDREN AND GRANDPARENTS AND GRANDCHILDREN;17
(VI) A PERSON WHO IS ACTING OR HAS ACTED AS ANOTHER18
PERSON'S LEGAL GUARDIAN; AND19
(VII) A PERSON IN ANY OTHER RELATIONSHIP DESCRIBED IN20
043-2-
SECTION 18-6-800.3 (2) WITH ANOTHER PERSON.1
(b) " FIREARM BARREL " MEANS THE TUBE THROUGH WHICH A2
PROJECTILE OR SHOT CHARGE IS FIRED. A FIREARM BARREL INCLUDES ANY3
FORGING, CASTING, PRINTING, EXTRUSION, MACHINED BODY, OR SIMILAR4
ARTICLE THAT HAS REACHED A STAGE IN MANUFACTURE WHERE IT MAY5
READILY BE COMPLETED, ASSEMBLED, OR CONVERTED TO BE USED AS A6
FIREARM BARREL, OR THAT IS MARKETED OR SOLD TO THE PUBLIC TO7
BECOME OR BE USED AS A FIREARM BARREL ONCE COMPLETED ,8
ASSEMBLED, OR CONVERTED. A FIREARM BARREL MAY HAVE A RIFLED OR9
SMOOTH BORE.10
(c) "F IREARM BARREL" DOES NOT INCLUDE A FIREARM BARREL11
THAT IS PERMANENTLY ATTACHED OR AFFIXED TO A FIREARM.12
(2) (a) I T IS UNLAWFUL FOR A PERSON TO SELL OR TRANSFER A13
FIREARM BARREL, UNLESS THE PERSON SELLING OR TRANSFERRING THE14
FIREARM BARREL IS A FEDERALLY LICENSED FIREARM DEALER AND THE15
SALE OR TRANSFER OCCURS IN PERSON.16
(b) A PERSON WHO VIOLATES THIS SUBSECTION (2) COMMITS17
UNLAWFUL SALE OF A FIREARM BARREL. UNLAWFUL SALE OF A FIREARM18
BARREL IS AN UNCLASSIFIED MISDEMEANOR PUNISHABLE , UPON19
CONVICTION THEREOF , BY A FINE OF NOT MORE THAN FIVE HUNDRED20
DOLLARS AND THIRTY DAYS IMPRISONMENT IN THE COUNTY JAIL; EXCEPT21
THAT A SECOND OR SUBSEQUENT OFFENSE IS A CLASS 2 MISDEMEANOR.22
(3) (a) IT IS UNLAWFUL FOR A PERSON WHO IS NOT A FEDERALLY23
LICENSED FIREARM DEALER TO POSSESS A FIREARM BARREL WITH THE24
INTENT TO SELL OR TRANSFER, OR WITH THE INTENT TO OFFER TO SELL OR25
TRANSFER, THE FIREARM BARREL IN VIOLATION OF THIS SECTION.26
(b) A PERSON WHO VIOLATES THIS SUBSECTION (3) COMMITS27
043-3-
UNLAWFUL POSSESSION WITH INTENT TO SELL OR OFFER TO SELL A1
FIREARM BARREL. UNLAWFUL POSSESSION WITH INTENT TO SELL OR OFFER2
TO SELL A FIREARM BARREL IS AN UNCLASSIFIED MISDEMEANOR3
PUNISHABLE, UPON CONVICTION THEREOF, BY A FINE OF NOT MORE THAN4
FIVE HUNDRED DOLLARS AND THIRTY DAYS IMPRISONMENT IN THE COUNTY5
JAIL; EXCEPT THAT A SECOND OR SUBSEQUENT OFFENSE IS A CLASS 26
MISDEMEANOR.7
(4) (a) A PERSON MAY PURCHASE OR OTHERWISE ACQUIRE A8
FIREARM BARREL FROM A FEDERALLY LICENSED FIREARM DEALER ONLY IF:9
(I) THEY ARE AT LEAST EIGHTEEN YEARS OLD; AND10
(II) T HEY ARE NOT PROHIBITED FROM POSSESSING , RECEIVING,11
OWNING, OR PURCHASING A FIREARM UNDER STATE OR FEDERAL LAW.12
(b) A PERSON WHO PURCHASES A FIREARM BARREL IN VIOLATION13
OF THIS SUBSECTION (4) COMMITS UNLAWFUL PURCHASE OF A FIREARM14
BARREL. UNLAWFUL PURCHASE OF A FIREARM BARREL IS A CIVIL15
INFRACTION.16
(5) A FEDERALLY LICENSED FIREARM DEALER SHALL LEGIBLY17
RECORD THE FOLLOWING INFORMATION PERTAINING TO THE SALE OR18
TRANSFER OF A FIREARM BARREL ON A FORM TO BE PRESCRIBED BY THE19
COLORADO BUREAU OF INVESTIGATION:20
(a) THE DATE OF THE SALE OR TRANSFER;21
(b) THE PURCHASER'S OR TRANSFEREE'S DRIVER'S LICENSE NUMBER22
OR OTHER OFFICIAL GOVERNMENT IDENTIFICATION NUMBER AND THE23
STATE OR TERRITORY WHERE IT WAS ISSUED;24
(c) THE MAKE, MODEL, AND CALIBER OF THE FIREARM WHICH THE25
FIREARM BARREL IS DESIGNED FOR OR USED IN;26
(d) THE PURCHASER'S OR TRANSFEREE'S FULL LEGAL NAME;27
043-4-
(e) THE FULL LEGAL NAME OF THE EMPLOYEE WHO PROCESSED THE1
SALE OR TRANSFER OF THE FIREARM BARREL;2
(f) T HE PURCHASER 'S OR TRANSFEREE 'S FULL RESIDENTIAL3
ADDRESS AND TELEPHONE NUMBER; AND4
(g) THE PURCHASER'S OR TRANSFEREE'S DATE OF BIRTH.5
(6) A FEDERALLY LICENSED FIREARM DEALER SHALL RETAIN THE6
RECORDS REQUIRED PURSUANT TO THIS SECTION FOR AT LEAST FIVE7
YEARS. A DEALER THAT DOES NOT RETAIN THEIR RECORDS PURSUANT TO8
THIS SUBSECTION (6) IS SUBJECT TO THE PENALTIES DESCRIBED IN SECTION9
18-12-401.5 (7)(a).10
(7) THIS SECTION DOES NOT APPLY TO:11
(a) THE SALE OR TRANSFER OF A FIREARM BARREL TO A FEDERAL,12
STATE, OR LOCAL LAW ENFORCEMENT AGENCY;13
(b) THE SALE OR TRANSFER OF A FIREARM BARREL TO A FEDERAL14
FIREARMS LICENSEE;15
(c) THE SALE OR TRANSFER OF A FIREARM BARREL TO THE UNITED16
STATES MILITARY;17
(d) THE SALE OR TRANSFER OF A FIREARM BARREL TO A PERSON18
WHO, IN THE SAME TRANSACTION, IS SEPARATELY PURCHASING A FIREARM19
AND UNDERGOING A FEDERAL AND STATE FIREARM BACKGROUND CHECK20
PURSUANT TO 18 U.S.C. SEC. 922 (t) AND SECTION 18-12-112.5;21
(e) THE SALE OR TRANSFER OF A FIREARM BARREL FOR AN ANTIQUE22
FIREARM, AS DEFINED IN 18 U.S.C. SEC. 921 (a)(16);23
(f) THE SALE OR TRANSFER OF A FIREARM BARREL TO A FEDERALLY24
LICENSED COLLECTOR WHO IS ACQUIRING OR BEING LOANED A FIREARM25
BARREL OF A FIREARM THAT IS A CURIO OR RELIC, AS DEFINED IN 27 CFR26
478.11;27
043-5-
(g) A TRANSFER OF A FIREARM BARREL THAT OCCURS BY1
OPERATION OF LAW OR BECAUSE OF THE DEATH OF A PERSON FOR WHOM2
THE PROSPECTIVE TRANSFEROR IS AN EXECUTOR OR ADMINISTRATOR OF3
AN ESTATE OR A TRUSTEE OF A TRUST CREATED IN A WILL. A TRANSFER OR4
SALE OF A FIREARM BARREL BY AN EXECUTOR OR ADMINISTRATOR OF AN5
ESTATE OR A TRUSTEE OF A TRUST CREATED IN A WILL MUST BE6
CONDUCTED BY A FEDERALLY LICENSED FIREARM DEALER AND IS SUBJECT7
TO THE REQUIREMENTS OF THIS SECTION.8
(h) THE SALE OR OTHER TRANSFER OF OWNERSHIP OF A FIREARM9
BARREL IF THE SALE OR OTHER TRANSFER OF OWNERSHIP IS TO AN10
AUTHORIZED REPRESENTATIVE OF A CITY , CITY AND COUNTY , COUNTY,11
STATE, OR THE FEDERAL GOVERNMENT, AND THE ENTITY IS ACQUIRING THE12
FIREARM BARREL AS PART OF AN AUTHORIZED VOLUNTARY PROGRAM IN13
WHICH THE ENTITY IS BUYING OR RECEIVING WEAPONS FROM A PRIVATE14
INDIVIDUAL; 15
(i) THE SALE OR TRANSFER OF A FIREARM BARREL THAT OCCURS16
BETWEEN FAMILY MEMBERS; AND17
(j) THE SALE OR TRANSFER OF A FIREARM BARREL BETWEEN AN18
INSTRUCTOR AND STUDENT OF AN ACCREDITED GUNSMITHING PROGRAM19
AT AN ACCREDITED INSTITUTION OF HIGHER EDUCATION OR AN20
INSTITUTION REGULATED BY THE COLORADO DIVISION OF PRIVATE21
OCCUPATIONAL SCHOOLS, WHEN THE SALE OR TRANSFER OCCURS SOLELY22
FOR PURPOSES OF EDUCATIONAL INSTRUCTION WITHIN THE ACCREDITED23
GUNSMITHING PROGRAM.24
(8) THE COLORADO BUREAU OF INVESTIGATION SHALL CREATE A25
FORM FOR RETAIL RECORD KEEPING PURSUANT TO THIS SECTION.26
SECTION 2. In Colorado Revised Statutes, 18-12-401.5, amend27
043-6-
(7)(a) introductory portion as follows:1
18-12-401.5. P ermit required - issuing agency - cash fund -2
inspections - penalty - report - rules - repeal.3
(7) (a) Except as provided in subsection (8) of this section, if the4
department finds that a dealer failed to post the required notice or make5
a report concerning unlawful purchases in violation of section 18-12-111;6
FAILED TO MAKE A RECORD REQUIRED PURSUANT TO SECTION 18-12-118;7
failed to make a record required pursuant to section 18-12-402;8
transferred a firearm without a locking device or failed to post the9
required notice concerning locking devices, in violation of section10
18-12-405; failed to comply with any of the requirements of section11
18-12-406; failed to comply with any of the requirements of section12
29-11.7-105 (5); violat ed any other provision of this article 12 or any13
other state or local law concerning the sale of firearms; or violated any14
federal law or rule concerning the sale of firearms or firearm components15
for which the penalty includes potential revocation of the person's federal16
firearms license, the department shall:17
SECTION 3. Effective date - applicability. This act takes effect18
July 1, 2026, and applies to offenses committed on or after said date.19
SECTION 4. Safety clause. The general assembly finds,20
determines, and declares that this act is necessary for the immediate21
preservation of the public peace, health, or safety or for appropriations for22
the support and maintenance of the departments of the state and state23
institutions.24
043-7-