Guns are legal in Mexico, but only under a narrow federal framework that restricts civilians to a small list of low-caliber firearms, funnels every legal purchase through a single military-run store, and treats unauthorized possession or importation as a serious federal crime. For anyone visiting from the United States, the practical answer is simpler: do not bring a firearm or a single round of ammunition across the border without a SEDENA permit arranged in advance, because doing so can mean five to thirty years in a Mexican prison.
What Civilians Are Allowed to Own
Mexican law splits firearms into two buckets: those permitted for civilians and those reserved exclusively for the armed forces. The civilian bucket is small.
For home defense, a household may register one handgun, capped at .380 ACP for semi-automatics or .38 Special for revolvers. Anything above that ceiling — including 9mm Parabellum, .38 Super, .357 Magnum, and .45 ACP — is military-exclusive and off-limits to private citizens.1Law Library of Congress. Mexico: Firearms Laws
Long guns are allowed for hunting, sport shooting, or protection of farmland. Permitted shotgun gauges are 12, 16, 20, 28, and .410, with a barrel of at least 25 inches. Rifles in .22 caliber are allowed for rural protection, and hunters in registered shooting clubs may own rifles up to .30 caliber under the appropriate permits. A household can register up to nine long guns in addition to its one handgun, for a total of ten firearms.
Everything else — automatic weapons, semi-automatic rifles like the AR-15, short-barreled shotguns, and every handgun above the civilian caliber cap — sits in the military-exclusive category. Possessing any of them as a civilian is a federal crime no matter how the gun was acquired.
The Only Legal Place to Buy a Gun
There is exactly one store in Mexico where civilians can lawfully purchase firearms and ammunition: the Dirección de Comercialización de Armamento y Municiones, known as the DCAM. It operates on the ground floor of a heavily guarded military base in Naucalpan, Estado de México, just outside Mexico City.2Gobierno de México (gob.mx). Comercialización de Armas No private gun shops. No online sales. No gun shows.
Buyers must first clear SEDENA’s licensing process, which takes months. Once approved, they travel to the DCAM in person, pass through military security, and choose from a limited inventory.
Who Qualifies and How Registration Works
Applications run through the nearest military base. To qualify, an applicant must:
- Be at least 18 years old.
- Have no criminal convictions, particularly firearms-related ones.
- Show physical and mental fitness to handle firearms safely.
- Have completed national military service, if male.
- Not be a drug consumer.
- Demonstrate an “upright” way of life, backed by proof of employment and proof of address.
SEDENA has 50 days to approve or deny. A denied applicant can appeal to a District Court, though successful appeals are essentially unheard of. Once a firearm is purchased, the owner must register it with SEDENA in writing, including make, caliber, model, and serial number.1Law Library of Congress. Mexico: Firearms Laws Hunting and shooting club members renew their transport permits annually; carry permits renew every two years.
Carrying a Firearm Outside the Home
This is where the law tightens sharply. The right of possession extends only to the home. Carrying in public, open or concealed, requires a separate carry permit from SEDENA. In a country of more than 130 million people, only a few thousand of these permits exist at any time. They are granted based on occupational need, dangerous place of residence, or other grounds SEDENA finds reasonable, and applicants must post a bond and supply five character references.1Law Library of Congress. Mexico: Firearms Laws
In practice, carry permits go almost exclusively to security professionals, government officials, and the politically connected. An ordinary citizen who legally owns a home-defense handgun cannot legally move it to a second home, keep it in a vehicle, or carry it anywhere else. Farmers and rural workers have a narrow theoretical exception outside urban areas, but even that requires a carry license.
Bringing a Firearm Into Mexico as a Visitor
Foreign visitors can temporarily import firearms, but only for hunting or organized sport shooting, and only with a SEDENA permit arranged well before arrival. Mexican customs agents do not issue gun permits at the crossing.
What You Can Bring
Hunters may import up to two rifles or shotguns per person. Bolt-action rifles are allowed in most calibers, with .50 caliber prohibited and a minimum barrel length of 16 inches. Semi-automatic shotguns are allowed; semi-automatic rifles are not. The only handguns permitted for importation are .22 LR and .22 WMR. No automatic or military-style firearms qualify under any circumstances. Ammunition is capped at 40 rounds per firearm, in the matching caliber.
How the Permit Works
You cannot file the application yourself. A licensed Mexican hunting outfitter applies to SEDENA on your behalf, submitting a copy of your passport, the firearm details (make, model, serial number, caliber), and a completed hunting agreement. The filing deadline is two months before arrival, and earlier is safer. When you reach the border or airport, the outfitter or their representative must physically meet you with the approved paperwork to clear the firearms through customs.
The permit fee runs around $100 USD, though outfitter handling fees add to the total. The permit covers only the specific trip and firearms listed, and the guns must leave Mexico when you do.
Penalties for Illegal Possession or Importation
Firearms violations in Mexico are federal crimes, and the punishments scale hard with the weapon type and the conduct:
- Carrying a firearm without a license: six months to three years in prison, plus fines.
- Smuggling military-exclusive firearms or ammunition into Mexico: five to thirty years in prison, plus fines of up to 500 days of income.
- Manufacturing or selling prohibited weapons without authorization: six months to three years, plus fines.
The smuggling range is the one that catches Americans. Mexican authorities x-ray incoming luggage at every land border crossing, airport, and seaport. A single forgotten round in a jacket pocket or a vehicle console is enough to trigger detention.3U.S. Customs and Border Protection. Are You Planning a Trip to Mexico from the United States? U.S. citizens who enter with a weapon or ammunition, even by accident, are routinely detained for days or longer, and many face formal criminal charges and lengthy sentences.1Law Library of Congress. Mexico: Firearms Laws
What This Means for U.S. Travelers
A U.S. concealed carry permit, a state firearms license, or lawful ownership at home has no legal weight the moment you reach a Mexican port of entry. Both the U.S. Department of State and U.S. Customs and Border Protection warn against carrying any firearm or ammunition into Mexico.3U.S. Customs and Border Protection. Are You Planning a Trip to Mexico from the United States?
Americans have been detained for months after accidentally crossing with a firearm they legally owned in the United States. In one recent case, a 23-year-old Texan spent nine months in a Juárez prison after getting lost and arriving at a border crossing with a pistol and bullets he was licensed to carry back home. Before driving anywhere near the border, search your vehicle thoroughly for loose rounds, magazines, or firearms you may have forgotten. If a hunting trip is the reason you need a firearm in Mexico, work through a licensed Mexican outfitter who will handle the SEDENA import permit for you. Do not try to sort it out at the crossing.