Unlawful possession of a firearm in Maryland carries penalties that start with mandatory prison time and climb sharply based on your criminal history, the type of weapon, and whether the gun was tied to another offense. A first violation can mean years behind bars with no parole eligibility during the mandatory minimum. Federal charges, when they attach, add up to 15 years on top of anything the state imposes.
Possession by a Disqualified Person
The core offense sits in Public Safety Article 5-133, which bars more than a dozen categories of people from possessing a regulated firearm. A conviction carries a mandatory minimum prison sentence with no parole eligibility during that minimum term. Repeat offenders face steeper mandatory minimums.1Maryland General Assembly. Maryland Public Safety Code 5-133
One wrinkle can change the outcome. If more than five years have passed since the person completed the sentence for the disqualifying conviction, including all imprisonment, probation, and parole, the court has discretion over whether to impose the mandatory minimum. In that scenario, the State’s Attorney must give the defendant 30 days’ written notice before trial of the intention to seek the mandatory sentence.1Maryland General Assembly. Maryland Public Safety Code 5-133
A separate provision, Public Safety Article 5-134, makes it a crime to sell, rent, loan, or transfer a regulated firearm to someone you know or have reason to believe is disqualified. Even a person who can legally own firearms faces charges for handing one to a prohibited recipient.2Maryland General Assembly. Maryland Public Safety Code 5-134
Carrying a Handgun Without a Permit
Carrying a handgun, openly or concealed, on your person or in a vehicle, without a valid wear-and-carry permit is a misdemeanor under Criminal Law Article 4-203. Penalties escalate with prior convictions and increase further when the offense occurs on public school property.
- No prior convictions: 30 days to 5 years in prison and a fine between $250 and $2,500. On public school property, the minimum rises to 90 days.3Maryland General Assembly. Maryland Criminal Law Code 4-203
- One prior conviction: 1 to 10 years. On school property, the minimum is 3 years.3Maryland General Assembly. Maryland Criminal Law Code 4-203
- Two or more prior convictions: 3 to 10 years. On school property, the minimum rises to 5 years.3Maryland General Assembly. Maryland Criminal Law Code 4-203
Prior convictions that count toward the enhanced tiers include violations of Sections 4-203, 4-204, 4-101, and 4-102 of the Criminal Law Article.
Firearms Used With Another Crime
When a gun accompanies another offense, Maryland stacks the punishment. Possessing a firearm during a drug trafficking offense is a separate felony under Criminal Law Article 5-621. A first violation carries 5 to 20 years in prison. A subsequent violation carries a minimum of 10 years. The sentence runs in addition to whatever the underlying drug crime carries.4Maryland General Assembly. Maryland Criminal Law Code 5-621
Using a handgun during a crime of violence triggers Criminal Law Article 4-204, which adds 5 to 20 years of imprisonment on top of the penalty for the underlying violent offense.5Maryland General Assembly. Maryland Criminal Law Code 4-204 – Use of Handgun or Antique Firearm in Commission of Crime
Federal Charges Under 18 U.S.C. § 922(g)
Firearm cases in Maryland regularly move to federal court when the accused has a violent criminal record or the weapon crossed state lines. A conviction under 18 U.S.C. § 922(g) carries up to 15 years in federal prison.6Office of the Law Revision Counsel. 18 USC 924 – Penalties Federal sentences are served in the federal Bureau of Prisons system, where parole has been abolished, meaning defendants serve at least 85% of the sentence before becoming eligible for release.
Federal exposure also reaches beyond the possession itself. Lying about disqualifying conduct on a firearm purchase form is punishable by up to 10 years in prison and a fine of up to $250,000.7Maryland Cannabis Administration. Patient FAQ
Unserialized Firearms and Ghost Guns
Since June 1, 2022, Maryland has required all firearms, including privately made ones and unfinished frames or receivers, to carry a serial number. An unserialized firearm must be marked by a federally licensed dealer and registered with the Maryland State Police through their licensing portal, which includes a full background check.8Maryland State Police. Registration of Unserialized, Privately-Made Firearms in Effect as of June 1, 2022 Firearms inherited after June 1, 2022, must be serialized within 30 days.
Violating these requirements is punishable by up to two years in prison, a fine of up to $10,000, or both. Each unserialized firearm counts as a separate offense.9Maryland General Assembly. Maryland Public Safety Code 5-703 – Serial Number Requirements
Who Counts as Disqualified
Whether these penalties apply to you depends on whether you fall inside one of the categories in Section 5-133. The most common trigger is a prior criminal conviction. Anyone convicted of a “disqualifying crime,” which includes all felonies and certain violent misdemeanors like robbery, carjacking, and first-degree assault, is barred from possession. A common-law conviction that carried more than two years of imprisonment also triggers the ban.1Maryland General Assembly. Maryland Public Safety Code 5-133
Federal law adds a category Maryland’s list does not always capture: anyone convicted of a misdemeanor domestic violence offense is prohibited from possessing firearms or ammunition nationwide.10Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts
Other disqualified categories include fugitives from justice, people addicted to or habitually using controlled substances, habitual drunkards, and anyone currently on supervised probation for a crime punishable by a year or more. A juvenile adjudicated delinquent for conduct that would have been a disqualifying crime in adult court remains barred until age 30. Involuntary commitment to a mental health facility with a finding of dangerousness, or a verdict of not criminally responsible, produces the same result. You must also be at least 21 to possess a regulated firearm in Maryland, with narrow exceptions for active-duty military and law enforcement personnel.
The restrictions apply specifically to “regulated firearms,” which Maryland defines as all handguns plus a list of more than 40 named assault-style weapons and their copies, including variants of the AK-47, AR-15, and UZI carbine. A standard bolt-action hunting rifle or a non-assault shotgun generally falls outside this definition, though other laws, such as the permit requirement for carrying a handgun, may still reach your situation.
A Note on Cannabis
Maryland legalized recreational cannabis, but federal law still classifies marijuana as a Schedule I controlled substance. Under 18 U.S.C. § 922(g)(3), anyone who uses a controlled substance, including cannabis, is prohibited from possessing firearms or ammunition, with no exception for state-legal medical or recreational use.10Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts Maryland residents who use cannabis and own a firearm are exposed to federal charges regardless of state law.
Consequences Beyond Prison
A conviction reaches into professional life for years after any sentence ends. Maryland law authorizes the denial, suspension, or revocation of state-issued professional licenses for anyone convicted of a felony, including licenses for accountants, architects, electricians, real estate brokers, home improvement contractors, mortgage originators, and dozens of healthcare professions.11Maryland Department of Legislative Services. Collateral Consequences of a Criminal Conviction For mortgage originators, a felony conviction requires license revocation with no discretion.
A felony firearm conviction appears on background checks that landlords and employers routinely run. Federal housing programs can deny applicants with certain criminal histories. Because the underlying offense involves a weapon, employers in security, education, childcare, and government work often treat it as an automatic disqualifier. These effects commonly outlast the prison sentence by decades.
Losing the Firearm to Forfeiture
When police seize a handgun during an arrest, traffic stop, or search warrant, the seizing authority must attempt to identify and locate the owner. Under Criminal Procedure Article 13-203, if the owner is a Maryland resident, the firearm may be returned. Otherwise, the owner must be notified and given 30 days to apply for a review, which examines whether the owner knew or should have known the handgun was being carried or used illegally and whether the owner is qualified to possess it.12Maryland General Assembly. Maryland Criminal Procedure Code 13-203 – Procedures After Seizure
If no timely claim is filed, or the owner cannot be identified, the handgun is forfeited to the State without further proceedings and may be destroyed or disposed of under state regulations.
Defenses That Change the Outcome
Because the penalties are heavy and often mandatory, the defense strategy usually decides how much exposure a defendant actually faces. Two lines of attack tend to matter most.
The first is the search itself. The Fourth Amendment requires probable cause or a valid warrant before police search a person, vehicle, or home. If the officer lacked reasonable suspicion for a traffic stop, or a warrant rested on stale information, the firearm may be suppressed. When the gun is excluded, the prosecution’s case often collapses.
The second is the possession theory. Maryland recognizes actual possession, where the firearm was on your person, and constructive possession, where prosecutors argue you knew a firearm was present and had the ability to control it. Riding in a car where police find a handgun under the seat can lead to constructive possession charges. In shared vehicles and residences, the prosecution’s burden becomes significantly harder to meet, and a defendant who can show other people had equal or greater access to the location where the gun was found has a real argument. Maryland law does not require proof of ownership, so knowledge and control do the work.
Given the mandatory minimums and the collateral fallout, involving a defense attorney early makes a measurable difference. Suppression motions and constructive possession challenges take investigation and preparation that must begin well before trial; by the time a case reaches a courtroom, the window for some of these strategies has already closed.