Red Flag Law and Weapon Limits in Missouri

Whether Missouri has a red flag (extreme risk) law and any limits on assault weapons or magazine capacity.

Short answer: Missouri has no state law that sets up extreme risk protection orders (red flag orders). Orders of protection under the Adult Abuse Act and the Child Protection Orders Act require abuse, stalking or sexual assault of the petitioner (or the child). RSMo ch. 571; RSMo ch. 455 (reviewed)

Red flag law	Missouri has no state law that sets up extreme risk protection orders (red flag orders). Orders of protection under the Adult Abuse Act and the Child Protection Orders Act require abuse, stalking or sexual assault of the petitioner (or the child). Reviewed RSMo chapter 571 (Weapons Offenses, §§571.010-571.510) and RSMo chapter 455 (Abuse - Adults and Children, §§455.003-455.560) on 2026-10-27; no extreme risk protection order provision found. Source: RSMo ch. 571; RSMo ch. 455 (reviewed)
Assault weapons and magazine limits	Missouri has no state law that bans assault weapons or limits magazine capacity. Possessing, manufacturing, transporting, repairing or selling a machine gun, short-barreled rifle or shotgun, or firearm silencer is a state offense only when done in violation of federal law. Reviewed RSMo chapter 571 (Weapons Offenses, §§571.010-571.510) on 2026-10-27; no provision found. Source: RSMo ch. 571 (reviewed); RSMo §571.020

Red flag law

Missouri has no state law that sets up extreme risk protection orders (red flag orders). Orders of protection under the Adult Abuse Act and the Child Protection Orders Act require abuse, stalking or sexual assault of the petitioner (or the child).

Reviewed RSMo chapter 571 (Weapons Offenses, §§571.010-571.510) and RSMo chapter 455 (Abuse - Adults and Children, §§455.003-455.560) on 2026-10-27; no extreme risk protection order provision found.

Source: RSMo ch. 571; RSMo ch. 455 (reviewed)

Assault weapons and magazine limits

Missouri has no state law that bans assault weapons or limits magazine capacity. Possessing, manufacturing, transporting, repairing or selling a machine gun, short-barreled rifle or shotgun, or firearm silencer is a state offense only when done in violation of federal law.

Reviewed RSMo chapter 571 (Weapons Offenses, §§571.010-571.510) on 2026-10-27; no provision found.

Source: RSMo ch. 571 (reviewed); RSMo §571.020

More Missouri gun laws

FAQ

Does Missouri have a red flag law?

Does Missouri ban assault weapons or high-capacity magazines?

General legal information, not legal advice. Laws change and local rules can differ; check the linked official source or talk to a lawyer about your situation.