---
type: "Bill"
title: "Semiautomatic Firearms & Rapid-Fire Devices"
description: "The act defines a \"specified semiautomatic firearm\" as a semiautomatic rifle or semiautomatic shotgun with a detachable magazine or a gas-operated semiautomatic handgun with a detachable magazine. The act excludes certain types of firearms and specified models of firearms from the definition of \"specified semiautomatic firearm\"."
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2025A"
identifier: "SB 25-003"
citation: "Colorado SB 25-003 (2025A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Andrew Boesenecker", "Julie Gonzales", "Meg Froelich", "Tom Sullivan"]
version_count: 12
action_count: 19
vote_count: 25
first_action: "2025-01-08T07:00:00+00:00"
last_action: "2025-04-10T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/0282f514-5aa5-4def-bf3f-88f7e0b69b5a"
source_url: "https://leg.colorado.gov/bills/sb25-003"
source_hash: "74a0d598097c6023d8511c9c2b8b8e9b47a8e79ec3689ab38bdadc1c838b127b"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-co"]
---

# Colorado SB 25-003 (2025A) — Semiautomatic Firearms & Rapid-Fire Devices

The act defines a "specified semiautomatic firearm" as a semiautomatic rifle or semiautomatic shotgun with a detachable magazine or a gas-operated semiautomatic handgun with a detachable magazine. The act excludes certain types of firearms and specified models of firearms from the definition of "specified semiautomatic firearm".

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Committee Amendment** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/2025a_sb003_h_app_003.pdf)
2. **Engrossed (02/14/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_003_eng.pdf)
3. **Final Act (04/02/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_003_enr.pdf)
4. **Introduced (01/08/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_003_01.pdf)
5. **PA1 (01/29/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_003_s_sa_01.pdf)
6. **PA2 (03/13/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_003_h_jud_01.pdf)
7. **PA3 (03/17/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_003_h_jud_fin_02.pdf)
8. **PA4 (03/21/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_003_h_jud_fin_app_01.pdf)
9. **Reengrossed (02/18/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_003_ren.pdf)
10. **Rerevised (03/24/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_003_rer.pdf)
11. **Revised (03/21/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2025A/bills/2025a_003_rev.pdf)
12. **Signed Act (04/10/2025)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/2025a_003_signed.pdf)

## Votes

- CONCUR — **20–14** (pass) · upper
- REPASS — **19–15** (pass) · upper
- AMD — **26–39** (fail) · lower
- AMD — **23–41** (fail) · lower
- AMD — **23–41** (fail) · lower
- BILL — **19–15** (pass) · upper
- AMD — **28–37** (fail) · lower
- AMD — **28–36** (fail) · lower
- AMD — **22–43** (fail) · lower
- COW * — **12–21** (fail) · upper
- COW * — **11–22** (fail) · upper
- COW * — **18–15** (pass) · upper
- AMD — **23–42** (fail) · lower
- AMD — **22–42** (fail) · lower
- AMD — **26–39** (fail) · lower
- AMD — **24–41** (fail) · lower
- REREFER — **25–38** (fail) · lower
- AMEND — **32–2** (pass) · upper
- AMD — **24–41** (fail) · lower
- AMD — **24–41** (fail) · lower
- BILL — **36–28** (pass) · lower
- REFER — **23–41** (fail) · lower
- REREFER — **23–40** (fail) · lower
- AMD — **25–40** (fail) · lower
- AMD — **22–43** (fail) · lower

## Sponsors

- Andrew Boesenecker — primary (person)
- Julie Gonzales — primary (person)
- Meg Froelich — primary (person)
- Tom Sullivan — primary (person)
- B. Titone — cosponsor (person)
- C. Clifford — cosponsor (person)
- C. Espenoza — cosponsor (person)
- C. Kipp — cosponsor (person)
- C. Kolker — cosponsor (person)
- D. Michaelson Jenet — cosponsor (person)
- E. Hamrick — cosponsor (person)
- E. Sirota — cosponsor (person)
- E. Velasco — cosponsor (person)
- F. Winter — cosponsor (person)
- I. Jodeh — cosponsor (person)
- J. Amabile — cosponsor (person)
- J. Bacon — cosponsor (person)
- J. Bridges — cosponsor (person)
- J. Coleman — cosponsor (person)
- J. Danielson — cosponsor (person)
- J. Jackson — cosponsor (person)
- J. Joseph — cosponsor (person)
- J. Mabrey — cosponsor (person)
- J. Marchman — cosponsor (person)
- J. Willford — cosponsor (person)
- K. Brown — cosponsor (person)
- K. McCormick — cosponsor (person)
- K. Wallace — cosponsor (person)
- L. Cutter — cosponsor (person)
- L. Daugherty — cosponsor (person)
- L. García — cosponsor (person)
- L. Gilchrist — cosponsor (person)
- L. Smith — cosponsor (person)
- M. Carter — cosponsor (person)
- M. Duran — cosponsor (person)
- M. Lindsay — cosponsor (person)
- M. Rutinel — cosponsor (person)
- M. Weissman — cosponsor (person)
- R. Rodriguez — cosponsor (person)
- R. Stewart — cosponsor (person)
- S. Camacho — cosponsor (person)
- S. Woodrow — cosponsor (person)
- T. Story — cosponsor (person)
- W. Lindstedt — cosponsor (person)
- Y. Zokaie — cosponsor (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2025-04-10T06:00:00+00:00** Governor Signed `executive-signature`
- **2025-04-03T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2025-04-02T06:00:00+00:00** Signed by the Speaker of the House
- **2025-04-02T06:00:00+00:00** Signed by the President of the Senate
- **2025-03-28T06:00:00+00:00** Senate Considered House Amendments - Result was to Concur - Repass
- **2025-03-24T06:00:00+00:00** House Third Reading Passed - No Amendments `passage, reading-3`
- **2025-03-21T06:00:00+00:00** House Second Reading Special Order - Passed with Amendments - Committee, Floor
- **2025-03-20T06:00:00+00:00** House Second Reading Laid Over Daily - No Amendments
- **2025-03-18T06:00:00+00:00** House Committee on Appropriations Refer Amended to House Committee of the Whole `committee-passage, referral-committee`
- **2025-03-14T06:00:00+00:00** House Committee on Finance Refer Amended to Appropriations `referral-committee`
- **2025-03-11T06:00:00+00:00** House Committee on Judiciary Refer Amended to Finance `referral-committee`
- **2025-02-19T07:00:00+00:00** Introduced In House - Assigned to Judiciary `introduction`
- **2025-02-18T07:00:00+00:00** Senate Third Reading Passed with Amendments - Floor `passage, reading-3`
- **2025-02-14T07:00:00+00:00** Senate Second Reading Passed with Amendments - Committee, Floor `reading-2`
- **2025-02-13T07:00:00+00:00** Senate Second Reading Laid Over Daily - No Amendments
- **2025-02-07T07:00:00+00:00** Senate Second Reading Laid Over to 02/13/2025 - No Amendments
- **2025-01-31T07:00:00+00:00** Senate Second Reading Laid Over to 02/07/2025 - No Amendments
- **2025-01-28T07:00:00+00:00** Senate Committee on State, Veterans, & Military Affairs Refer Amended to Senate Committee of the Whole `committee-passage, referral-committee`
- **2025-01-08T07:00:00+00:00** Introduced In Senate - Assigned to State, Veterans, & Military Affairs `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/0282f514-5aa5-4def-bf3f-88f7e0b69b5a`. Confidence: reported (aggregated from official Colorado legislature records).