All States

Missouri

MO
permissive

Firearm Regulations

Assault Weapon Ban
No
Mag Capacity Limit
No
Permit to Purchase
No
Firearm Registration
No
Concealed Carry
Permitless (19+)
Open Carry
Yes (locality restrictions possible)
Red Flag Law
No
Background Check (Private)
No
NFA Weapons
Unrestricted
State Preemption
Partial

Key Notes

Permitless carry since January 2017. Local governments can regulate open carry. St. Louis bans firearms in city parks.

  • •Permitless (19+) — Adults 19 and older can carry concealed without a permit since January 2017. Missouri uses an unusual 19+ age threshold.
  • •Yes (locality restrictions possible) Open Carry — Open carry is legal statewide, but local governments retain the ability to restrict open carry. St. Louis bans firearms in city parks.
  • •Partial (State Preemption) — Missouri has partial preemption. The state preempts most firearms laws, but localities can regulate open carry and certain aspects of possession on government property.
  • •Unrestricted (NFA) — All NFA items (SBRs, SBS, suppressors, machine guns, destructive devices) are legal with the federal tax stamp.
  • •Carry Permits Available — While not required, Missouri still issues concealed carry permits for reciprocity with other states.

Last updated January 15, 2026

MSMT

Legal Disclaimer: This page is for informational and educational purposes only and does not constitute legal advice. Firearm laws change frequently and vary by jurisdiction. Always verify current regulations with official state sources, a qualified attorney, or local law enforcement before making purchasing or carrying decisions. GunPartPicker is not responsible for errors, omissions, or actions taken based on this information.