This is a copy of an email I received Jan 26, 2018
Mr. Radnor,
You can bring an AR-15 into Maryland if purchased prior to October 01, 2013. If the AR-15 is an hbar/heavy barrel then it is considered a long gun and can be brought into Maryland (except a Bushmaster heavy barrel). Possession of high capacity magazines is not banned. Maryland law limits the transportation of handguns (see below).
Federal Firearms Regulations Reference Guide
§ 478.38 Transportation of firearms.
Notwithstanding any other provision of any law or any rule or regulation of a State or any political subdivision thereof, any person who is not otherwise prohibited by this chapter from transporting, shipping, or receiving a firearm shall be entitled to transport a firearm for any lawful purpose from any place where such person may lawfully possess and carry such firearm to any other place where such person may lawfully possess and carry such firearm if, during such transportation the firearm is unloaded, and neither the firearm nor any ammunition being transported is readily accessible or is directly accessible from the passenger compartment of such transporting vehicle: Provided, That in the case of a vehicle without a compartment separate from the driver's compartment the firearm or ammunition shall be contained in a locked container other than the glove compartment or console.
Maryland Criminal Law
§ 4-203. Wearing, carrying, or transporting handgun
(b) Exceptions. -- This section does not prohibit:
(3) the carrying of a handgun on the person or in a vehicle while the person is transporting the handgun to or from the place of legal purchase or sale, or to or from a bona fide repair shop, or between bona fide residences of the person, or between the bona fide residence and place of business of the person, if the business is operated and owned substantially by the person if each handgun is unloaded and carried in an enclosed case or an enclosed holster;
(4) the wearing, carrying, or transporting by a person of a handgun used in connection with an organized military activity, a target shoot, formal or informal target practice, sport shooting event, hunting, a Department of Natural Resources-sponsored firearms and hunter safety class, trapping, or a dog obedience training class or show, while the person is engaged in, on the way to, or returning from that activity if each handgun is unloaded and carried in an enclosed case or an enclosed holster;
(5) the moving by a bona fide gun collector of part or all of the collector's gun collection from place to place for public or private exhibition if each handgun is unloaded and carried in an enclosed case or an enclosed holster;
§ 4-305. Detachable magazines -- Prohibited
(a) Scope of section. -- This section does not apply to:
(1) a .22 caliber rifle with a tubular magazine; or
(2) a law enforcement officer or a person who retired in good standing from service with a law enforcement agency of the United States, the State, or any law enforcement agency in the State.
(b) Prohibited. -- A person may not manufacture, sell, offer for sale, purchase, receive, or transfer a detachable magazine that has a capacity of more than 10 rounds of ammunition for a firearm.
Thank you,
Sergeant Jason Edwards
Maryland State Police
Licensing Division
Firearms Registration Unit
Operations Supervisor
1111 Reisterstown Road
Pikesville, Maryland 21208
Office: 410-653-4508
Fax: 410-653-4036
Please refer to the Maryland State Police website for up to date
information.
http://mdsp.maryland.gov/LicensingDivision