If you’re visiting from another state, Missouri gun laws for out-of-state travelers are among the most permissive in the country: anyone at least 19 years old who is legally eligible to possess a firearm can carry one concealed in Missouri without any permit, and the law makes no distinction between residents and visitors. Missouri has recognized permitless carry since 2017. The trickier part is knowing where you cannot carry, which local ordinances might reach you, and how federal law overlays the state rules.
Who Can Carry Without a Permit
Missouri’s permitless carry provision applies to anyone at least 19 who is not otherwise prohibited from possessing a firearm under state or federal law. Active-duty military and those honorably discharged qualify at 18.1Missouri Revisor of Statutes. Missouri Code 571.030 – Unlawful Use of Weapons You don’t need a Missouri permit, and reciprocity is not a concern because no permit is required in the first place.
Federal disqualifications still apply. Anyone convicted of a felony, subject to a qualifying domestic violence restraining order, dishonorably discharged, or an unlawful user of a controlled substance cannot carry in Missouri. Permitless carry does not override those bars.
Carrying in Your Vehicle
If you drive into Missouri, you can keep a loaded handgun anywhere in the passenger compartment: glove box, console, under a seat. No locked case or trunk storage is required.2Missouri Revisor of Statutes. Missouri Code 571.107 – Permit Does Not Authorize Concealed Firearms, Where, Penalty for Violation
The vehicle rule extends to prohibited locations. You can leave a firearm inside your parked car at a courthouse, school, or other off-limits site, as long as you don’t remove it or brandish it while on those premises.2Missouri Revisor of Statutes. Missouri Code 571.107 – Permit Does Not Authorize Concealed Firearms, Where, Penalty for Violation
Where You Cannot Carry
This is where travelers get into trouble. Missouri’s carry law is broad, but the list of off-limits places is real, and permitless carriers face additional restrictions that permit holders do not.
Off-Limits to Everyone
Under Section 571.107, no one may carry a concealed firearm into:
- Any police, sheriff, or highway patrol station, unless the chief officer consents
- Any courthouse solely occupied by a circuit, appellate, or supreme court, including judges’ chambers and administrative offices
- Any adult or juvenile detention facility or correctional institution
- Any area past an airport security checkpoint
- Within 25 feet of a polling place on election day
- Any place of religious worship, unless the person in charge consents
- Any meeting of a local governing body or the state legislature
Extra Restrictions If You’re Carrying Without a Permit
Section 571.030 adds locations that are off-limits specifically to those relying on permitless carry:1Missouri Revisor of Statutes. Missouri Code 571.030 – Unlawful Use of Weapons
- Any church or place of worship (broader than the permit-holder rule, which allows carry with consent)
- Any election precinct on election day
- Any building owned or occupied by a federal, state, or local government agency
- Any school bus or school-sponsored function
The practical takeaway: a visitor with a recognized permit from their home state can carry into a government office building that isn’t a courthouse or police station. A visitor relying on permitless carry cannot.
Posted Private Property
Any business or property owner can ban firearms by posting a sign at least 11 by 14 inches with lettering at least one inch tall, displayed conspicuously at the entrance.2Missouri Revisor of Statutes. Missouri Code 571.107 – Permit Does Not Authorize Concealed Firearms, Where, Penalty for Violation Ignoring one is a state law violation, not just trespassing. Check entrances at hotels, restaurants, and retail stores, especially in urban areas.
Public Transit Is a Trap Without a Permit
Carrying a concealed weapon on a public bus without a valid concealed carry permit or endorsement is a felony under Missouri law. Permit holders are specifically exempted.3Missouri Senate. Senate Bill 39 – Carrying of Firearms on Public Transportation Systems If you’re using transit in Kansas City or St. Louis and don’t hold a recognized permit, leave the firearm behind.
Local Open-Carry Ordinances
Missouri preempts most local firearm regulation, but cities and counties are allowed to restrict open carry by people who don’t hold a concealed carry permit.4Missouri Revisor of Statutes. Missouri Code 21.750 – Firearms Legislation Preemption by General Assembly, Exceptions St. Louis, for example, requires a permit to open carry. Other cities have similar ordinances, and there is no centralized list.
A valid permit from any state gets you around these ordinances. Without one, openly displaying a firearm in one of these cities can lead to a citation or arrest. Concealed carry avoids the issue entirely, since local ordinances cannot restrict it.
h2>Federal Buildings and National Parks
Missouri’s carry rules stop at the door of any federal building. Knowingly possessing a firearm in a federal facility is a crime punishable by up to one year in prison, and up to two years in a federal court facility.5Office of the Law Revision Counsel. 18 U.S. Code 930 – Possession of Firearms and Dangerous Weapons in Federal Facilities Post offices, Social Security offices, VA buildings, and federal courthouses are all covered.
National parks work differently. Federal law lets you possess a firearm in a national park if you comply with the law of the state where the park sits. Because Missouri allows permitless carry, that extends to visitors in the outdoor areas of parks like the Ozark National Scenic Riverways and the Gateway Arch National Park. Firearms are still prohibited inside NPS buildings such as visitor centers and ranger stations under the federal facility law, and discharging a firearm in a national park is prohibited outside of legally permitted hunting.6National Park Service. Firearms in National Parks
Self-Defense Law
Missouri is a stand-your-ground state. You have no duty to retreat before using force in self-defense if you are somewhere you have a right to be and reasonably believe force is necessary to protect yourself or someone else from imminent unlawful force.7Missouri Revisor of Statutes. Missouri Code 563.031 – Use of Force in Defense of Persons
The castle doctrine extends this to your home, vehicle, or any dwelling you lawfully occupy, with a presumption that deadly force was reasonable if someone unlawfully entered or attempted to. A hotel room or rented cabin counts as a dwelling you occupy, which is directly relevant if you’re traveling. The protection does not apply if you were the initial aggressor or were committing a crime at the time.
If You Get Pulled Over
Missouri does not require you to immediately tell an officer you’re armed. You must answer truthfully if asked. In practice, volunteering the information calmly, with your hands visible, is the safer approach. An officer who finds a firearm without warning reacts differently than one told at the start of the encounter.
You don’t need a permit to show, but keep a driver’s license or government ID accessible. It establishes your identity and, by extension, your eligibility to carry.
Bring Your Home-State Permit If You Have One
Missouri recognizes concealed carry permits from every state that issues them.8Attorney General Office of Missouri. Concealed Carry Reciprocity If you already hold one, bring it. It gives you three real advantages over permitless carry:
- You can carry in government office buildings (other than courthouses and police stations) and on public transit
- You are shielded from local open-carry ordinances
- Your permit still protects you on the drive home through other states
Missouri does not issue permits to non-residents unless they are active-duty military stationed in the state, so applying for a Missouri permit isn’t an option for most visitors.
Marijuana Users Face a Federal Problem
Missouri legalized recreational marijuana, but federal law still classifies it as a controlled substance. Under 18 U.S.C. ยง 922(g)(3), an “unlawful user of or addicted to any controlled substance” cannot possess a firearm, and that federal prohibition applies to regular marijuana users regardless of state legality.
The U.S. Supreme Court heard oral arguments in a case challenging this prohibition in March 2026, but no decision has been issued and the ban remains in effect. If you use marijuana in any form and plan to carry a firearm in Missouri, you are technically violating federal law until the Court rules.