Missouri HB1730: Modifies provisions relating to firearm suppressors

What the bill says

From the engrossed text:

SECOND REGULAR SESSION [PERFECTED] HOUSE BILL NO. 1730 103RD GENERAL ASSEMBLY INTRODUCED BY REPRESENTATIVE COSTLOW. 3988H.01P JOSEPH ENGLER, Chief Clerk To repeal sections 571.010 and 571.020, RSMo, and to enact in lieu thereof four new sections relating to firearm suppressors, with penalty provisions. Section A. Sections 571.010 and 571.020, RSMo, are repealed and four new sections enacted in lieu thereof, to be known as sections 571.010, 571.020, 571.935, and 571.940, to read as follows: 571.010. As used in this chapter, the following terms shall mean: (1) "Antique, curio or relic firearm", any firearm so defined by the National Gun Control Act, 18 U.S.C. Title 26, Section 5845, and the United States Treasury/Bureau of Alcohol Tobacco and Firearms, 27 CFR Section 178.11: (a) "Antique firearm" is any firearm not designed or redesigned for using rim fire or conventional center fire ignition with fixed ammunition and manufactured in or before 1898, said ammunition not being manufactured any longer; this includes any matchlock, wheel lock, flintlock, percussion cap or similar type ignition system, or replica thereof; (b) "Curio or relic firearm" is any firearm deriving value as a collectible weapon due to its unique design, ignition system, operation or at least fifty years old, associated with a historical event, renown personage or major war; (2) "Blackjack", any instrument that is designed or adapted …

Read the full official text

Sponsors

• Mike Costlow (R, 108) · primary sponsor
• Elliott, Keith (R, 153)
• Bryant Wolfin (R, 145)
• John Hewkin (R, 120)
• Cathy Loy (R, 163)
• Brian Seitz (R, 156)
• William Irwin (R, 055)
• Brad Banderman (R, 119)

Latest actions

1. May 4, 2026: Public Hearing Held (S)
2. April 30, 2026: Public Hearing Scheduled (S) - Monday, May 4, 2026, 2:00 p.m., Senate Committee Room 1 - 1st Floor
3. April 21, 2026: Second read and referred: Transportation, Infrastructure and Public Safety(S)
4. April 13, 2026: Reported to the Senate and First Read (S)
5. April 9, 2026: Third Read and Passed (H) - AYES: 95 NOES: 44 PRESENT: 0
6. April 9, 2026: Taken Up for Third Reading (H)
7. April 7, 2026: Perfected (H)
8. April 7, 2026: Title of Bill - Agreed To
9. April 7, 2026: Taken Up for Perfection (H)
10. March 31, 2026: Placed on the Informal Perfection Calendar (H)

Votes

• Third Read and Passed (H) (April 9, 2026): 95 yea, 44 nay, passed
• Reported Do Pass (H) (March 5, 2026): 9 yea, 3 nay, passed
• Reported Do Pass (H) (February 26, 2026): 10 yea, 3 nay, passed

Common questions

What is HB1730?

HB1730 is a bill in the Missouri Legislature (2026 Regular Session): Modifies provisions relating to firearm suppressors.

What is the status of HB1730?

In committee as of May 4, 2026. Latest action: Public Hearing Held (S) (May 4, 2026).

Who sponsored HB1730?

Mike Costlow (R, 108), with 7 co-sponsors.

Where is the official record for HB1730?

On the Missouri Legislature website: https://house.mo.gov/BillContent.aspx?bill=HB1730&year=2026&code=R