Colorado Prohibits 3D Printing of Firearms and Components

Detected February 28th, 2026

Summary

Colorado HB26-1144 prohibits the manufacturing, possession with intent to manufacture, and distribution of digital instructions for 3D printing firearms and components. Violations are classified as a class 1 misdemeanor, escalating to a class 5 felony for subsequent offenses. This bill applies to individuals and entities not federally licensed to manufacture firearms.

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What changed

Colorado Bill HB26-1144, introduced for the 2026 Regular Session, proposes to prohibit the manufacturing, possession with intent to manufacture, and distribution of digital instructions for 3D printing firearms, unfinished frames or receivers, large-capacity magazines, and rapid-fire devices. The prohibition explicitly excludes federally licensed firearm manufacturers, provided they possess digital instructions in circumstances indicating intent to manufacture for their licensed operations. The bill defines 3-dimensional printing to include both additive and subtractive manufacturing processes.

This legislation introduces new criminal offenses within Colorado. Manufacturing or producing prohibited items via 3D printing, or possessing digital instructions with intent to illegally manufacture or distribute them, will be a class 1 misdemeanor. A second or subsequent offense will be elevated to a class 5 felony. Compliance officers should review the bill's definitions and prohibitions to ensure no activities within their organization or by their employees violate these new state-level restrictions, particularly concerning the possession or distribution of relevant digital files. The bill's effective date is not yet determined as it is still in the legislative process.

What to do next

Review Colorado HB26-1144 for applicability to organizational activities and digital asset management.
Ensure no employees or contractors are engaged in the prohibited manufacturing or distribution of 3D printing files for firearms and components within Colorado.
Verify that any federally licensed firearm manufacturing operations in Colorado are compliant with the specific exclusions outlined in the bill.

Penalties

Class 1 misdemeanor for a first offense; class 5 felony for a second or subsequent offense.

Source document (simplified)

HB26-1144

Prohibit Three-Dimensional Printing Firearms & Components

| Type | Bill |
| --- | --- |
| Session | 2026 Regular Session |
| Subjects | Crimes, Corrections, & Enforcement |
Concerning measures to prohibit the use of three-dimensional printing to manufacture firearms.

Recent Bill (PDF) Recent Fiscal Note (PDF) Bill Summary:

The bill defines 3-dimensional printing to mean additive and subtractive manufacturing. The bill prohibits each of the following:

Manufacturing or producing a firearm, unfinished frame or receiver, large-capacity magazine, or rapid-fire device (firearm or firearm component) by 3-dimensional printing. The prohibition does not apply to a federally licensed firearm manufacturer.
Possessing, in circumstances that indicate intent to manufacture a firearm or firearm component in violation of state law or intent to distribute, digital instructions that may be used to program a 3-dimensional printer or a computer numerical control (CNC) milling machine to manufacture or produce a firearm or firearm component. The prohibition does not apply to a federally licensed firearm manufacturer who possesses digital instructions in circumstances that indicate intent to manufacture a firearm or firearm component.
Distributing digital instructions that may be used to program a 3-dimensional printer or CNC milling machine to manufacture or produce a firearm or firearm component. The bill does not prohibit possession of digital instructions in circumstances that indicate intent to distribute to, or distributing digital instructions to, a federally licensed firearm manufacturer.

A violation of any of the prohibitions in the bill is a class 1 misdemeanor; except that a second or subsequent offense is a class 5 felony.

(Note: This summary applies to this bill as introduced.)

Prime Sponsors

Representative

Lindsay Gilchrist
Representative

Andrew Boesenecker
Senator

Tom Sullivan
Senator

Katie Wallace

Committees

House

Judiciary

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Status

Under Consideration

Introduced

Under Consideration

Upcoming Schedule

1 meeting

Mon

Mar 2

House Third Reading of Bills - Final Passage

10:00 AM House Chamber

Related Documents & Information

| Date | Version | Documents |
| --- | --- | --- |
| 02/27/2026 | Engrossed | PDF |
| 02/04/2026 | Introduced | PDF |

| Date | Version | Documents |
| --- | --- | --- |
| 02/19/2026 | PA1 | PDF |

| Date | Version | Documents |
| --- | --- | --- |
| 02/11/2026 | FN1 | PDF |

| Activity | Vote | Documents |
| --- | --- | --- |
| Refer House Bill 26-1144, as amended, to the Committee of the Whole. | The motion passed on a vote of 7-4. | Vote summary |
Committee Report: PDF
| Date | Calendar | Motion | Vote | Vote Document |
| --- | --- | --- | --- | --- |
| 02/27/2026 | Committee of the Whole | AMD (H.003) | 21 AYE 35 NO 9 OTHER | Vote record |
| 02/27/2026 | Committee of the Whole | AMD (H.004) | 20 AYE 36 NO 9 OTHER | Vote record |
| 02/27/2026 | Committee of the Whole | AMD (H.001) | 18 AYE 37 NO 10 OTHER | Vote record |
| 02/27/2026 | Committee of the Whole | AMD (H.005) | 20 AYE 35 NO 10 OTHER | Vote record |

| Date | Amendment Number | Committee/ Floor Hearing | Status | Documents |
| --- | --- | --- | --- | --- |
| 02/27/2026 | L.024 | Second Reading | Lost [] | PDF |
| 02/27/2026 | L.015 | Second Reading | Lost [] | PDF |
| 02/27/2026 | L.032 | Second Reading | Lost [] | PDF |
| 02/27/2026 | L.008 | Second Reading | Lost [] | PDF |
| 02/27/2026 | L.027 | Second Reading | Lost [] | PDF |
| 02/27/2026 | L.012 | Second Reading | Lost [] | PDF |
| 02/27/2026 | L.011 | Second Reading | Lost [] | PDF |
| 02/27/2026 | L.019 | Second Reading | Lost [] | PDF |
| 02/27/2026 | L.005 | Second Reading | Lost [] | PDF |
| 02/27/2026 | L.036 | Second Reading | Lost [] | PDF |
| 02/27/2026 | L.033 | Second Reading | Lost [] | PDF |
| 02/27/2026 | L.016 | Second Reading | Lost [] | PDF |
| 02/27/2026 | L.029 | Second Reading | Lost [] | PDF |
| 02/27/2026 | L.006 | Second Reading | Lost [] | PDF |
| 02/27/2026 | L.023 | Second Reading | Passed [] | PDF |
| 02/27/2026 | L.034 | Second Reading | Lost [] | PDF |
| 02/27/2026 | L.013 | Second Reading | Lost [] | PDF |
| 02/27/2026 | L.004 | Second Reading | Passed [] | PDF |
| 02/27/2026 | L.003 | Second Reading | Passed [] | PDF |
| 02/27/2026 | L.025 | Second Reading | Lost [] | PDF |
| 02/27/2026 | L.009 | Second Reading | Lost [*] | PDF |
| 02/18/2026 | L.001 | HOU Judiciary | Passed [] | PDF |
* Amendments passed in committee are not incorporated into the measure unless adopted by the full House or Senate.

** The status of Second Reading amendments may be subsequently affected by the adoption of an amendment to the Committee of the Whole Report. Refer to the House or Senate Journal for additional information.

| Date | Location | Action |
| --- | --- | --- |
| 02/27/2026 | House | House Second Reading Special Order - Passed with Amendments - Committee, Floor |
| 02/23/2026 | House | House Second Reading Laid Over Daily - No Amendments |
| 02/18/2026 | House | House Committee on Judiciary Refer Amended to House Committee of the Whole |
| 02/04/2026 | House | Introduced In House - Assigned to Judiciary |
Prime Sponsor

Rep. A. Boesenecker | Rep. L. Gilchrist

Sen. T. Sullivan | Sen. K. Wallace

Sponsor

(None) Co-Sponsor

(None)