# Missouri HB1730: Modifies provisions relating to firearm suppressors

Missouri HB1730, Modifies provisions relating to firearm suppressors, is a 2026 Regular Session House bill sponsored by Mike Costlow (Republican); status failed, last action 2026-05-04 (Public Hearing Held) (as of 2026-11-04).

- Canonical: https://policyrisk.com/state-bill/MO-HB1730-2026
- As of: 2026-11-04
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Bill: Missouri HB1730
- State: Missouri
- Session: 2026 Regular Session
- Title: Modifies provisions relating to firearm suppressors
- Status: failed
- Chamber: House
- Introduced: 2025-12-01
- Last action: 2026-05-04, Public Hearing Held
- Sponsor: Mike Costlow (Republican)
- Cosponsors: 7
- Touches household money: no
- Roll calls: 3 (114 yes, 50 no in all)
- Economic provisions PRIA read: 0

## Summary

No summary available.

## Bill overview

No economic impacts identified for this bill.

## Sponsors and cosponsors

- Sponsor: Mike Costlow (Republican), House
- Cosponsor: Bill Irwin (Republican), House
- Cosponsor: Brad Banderman (Republican), House
- Cosponsor: Brian Seitz (Republican), House
- Cosponsor: Bryant Wolfin (Republican), House
- Cosponsor: Cathy Jo Loy (Republican), House
- Cosponsor: John Hewkin (Republican), House
- Cosponsor: Keith Elliott (Republican), House

## Roll call votes

| Date | Chamber | Motion | Result | Yes | No | Other |
| --- | --- | --- | --- | --- | --- | --- |
| 2026-04-09 | House | Third Read and Passed | pass | 95 | 44 |   |
| 2026-03-05 | House | Reported Do Pass | pass | 9 | 3 |   |
| 2026-02-26 | House | Reported Do Pass | pass | 10 | 3 |   |

## Actions (22)

- 2026-05-04: Public Hearing Held (Senate)
- 2026-04-30: Public Hearing Scheduled - Monday, May 4, 2026, 2:00 p.m., Senate Committee Room 1 - 1st Floor (Senate)
- 2026-04-21: Second read and referred: Transportation, Infrastructure and Public Safety (Senate)
- 2026-04-13: Reported to the Senate and First Read (Senate)
- 2026-04-09: Third Read and Passed - AYES: 95 NOES: 44 PRESENT: 0 (House)
- 2026-04-09: Taken Up for Third Reading (House)
- 2026-04-07: Perfected (House)
- 2026-04-07: Title of Bill - Agreed To (House)
- 2026-04-07: Taken Up for Perfection (House)
- 2026-03-31: Placed on the Informal Perfection Calendar (House)
- 2026-03-05: Reported Do Pass - AYES: 9 NOES: 3 PRESENT: 0 (House)
- 2026-03-05: Voted Do Pass (House)
- 2026-03-05: Executive Session Completed (House)
- 2026-03-02: Referred: Rules - Legislative (House)
- 2026-02-26: Reported Do Pass - AYES: 10 NOES: 3 PRESENT: 0 (House)
- 2026-02-25: Voted Do Pass (House)
- 2026-02-25: Executive Session Completed (House)
- 2026-02-18: Public Hearing Completed (House)
- 2026-02-05: Referred: General Laws (House)
- 2026-01-08: Read Second Time (House)
- 2026-01-07: Read First Time (House)
- 2025-12-01: Prefiled (House)

## Bill text

- Perfected, 2026-04-07: [PDF](https://documents.house.mo.gov/billtracking/bills261/hlrbillspdf/3988H.01P.pdf)
- Introduced, 2026-01-07: [PDF](https://documents.house.mo.gov/billtracking/bills261/hlrbillspdf/3988H.01I.pdf)

## Related bills

- SB1408: Increases the maximum speed limit from 70 to 75 miles per hour on rural interstates and freeways (signed)
- SB1135: Creates "Bentley and Mason's Law" relating to child maintenance orders for certain persons convicted of the offense of driving while intoxicated (signed)
- SB1067: Establishes the Uniform Public Expression Protection Act, which provides procedures for dismissal of actions based on public expression (signed)
- SB1019: Modifies several provisions relating to health care (signed)
- SB973: Creates and modifies provisions relating to real estate transactions (signed)
- SB890: Repeals expired, terminated, sunset, and obsolete sections of law (signed)

## Sources
- [Perfected (PDF)](https://documents.house.mo.gov/billtracking/bills261/hlrbillspdf/3988H.01P.pdf)
- [Introduced (PDF)](https://documents.house.mo.gov/billtracking/bills261/hlrbillspdf/3988H.01I.pdf)

## Related
- [SB1408: Increases the maximum speed limit from 70 to 75 miles per hour on rural interst…](https://policyrisk.com/state-bill/MO-SB1408-2026)
- [SB1135: Creates "Bentley and Mason's Law" relating to child maintenance orders for cert…](https://policyrisk.com/state-bill/MO-SB1135-2026)
- [SB1067: Establishes the Uniform Public Expression Protection Act, which provides proced…](https://policyrisk.com/state-bill/MO-SB1067-2026)
- [SB1019: Modifies several provisions relating to health care](https://policyrisk.com/state-bill/MO-SB1019-2026)
- [SB973: Creates and modifies provisions relating to real estate transactions](https://policyrisk.com/state-bill/MO-SB973-2026)
- [SB890: Repeals expired, terminated, sunset, and obsolete sections of law](https://policyrisk.com/state-bill/MO-SB890-2026)
- [Missouri bills](https://policyrisk.com/states/missouri/bills)
- [Missouri state hub](https://policyrisk.com/states/missouri)
- [All state legislation](https://policyrisk.com/state-bills)

Source: PRIA, https://policyrisk.com/state-bill/MO-HB1730-2026 (as of 2026-11-04).