 
Gun laws in Massachusetts regulate the sale, possession, and use of firearms and ammunition in the Commonwealth of Massachusetts in the United States. These laws are among the most restrictive in the entire country.
On July 25, 2024, Maura Healey, the Governor of Massachusetts, signed "An Act Modernizing Firearms Laws" (H.4885) described as "the state’s most significant gun safety legislation in a decade." Changes per H.4885 were due to go into effect 90 days from the date of signing, on October 23, 2024. However, the governor signed an emergency measure on October 2, 2024, which put the Act into effect on that date. Efforts to suspend the Act for two years, via a citizens' initiative, were ongoing at that time. Some aspects of the Act, such as requiring live-fire training for prospective gun owners, have been delayed by action of the state legislature.
Summary table.
 ;onlyinclude ;
"Note: this section does not yet reflect changes per An Act Modernizing Firearms Laws (H.4885)."
 ;/onlyinclude ;
Regulations and processes.
"Note: this section does not yet reflect changes per An Act Modernizing Firearms Laws (H.4885)."
Licensing process.
Massachusetts law requires firearm owners to be licensed through their local police department, or the Massachusetts State Police if no local licensing authority is available. A license is required by state law for buying firearms and ammunition. An applicant must have passed a state-approved firearm safety course before applying for a license.
All applications, interviews, fees, and fingerprinting are done at the local police department then sent electronically to the Massachusetts Criminal History Board for the mandatory background checks and processing. All approved applicants will receive their license from the issuing police department. All licensing information is stored by the Criminal History Board. Non-residents who are planning on carrying in the state must apply for a temporary license to carry (LTC) through the Massachusetts State Police before their travel.
Non-citizen permits.
Non-citizens who reside in Massachusetts can apply for a "permit to possess non-large-capacity rifles and shotguns pursuant M.G.L. 140 s. 131H" directly with the state's Firearms Records Bureau (FRB). The applicants must receive firearms education at the FID or LTC-level and pass a 20-fingerprint FBI background check and interview. This permit is a "may issue" document similar to the FID but expiring December 31 of each year. The procedure requires about 16 weeks from application to delivery of the permit. There is no 90-day grace period for the renewal of non-citizens permits.
Both nonresident (i.e. visa holders) and permanent resident (i.e. "green card" holders) non-citizens are lumped together by Massachusetts law. The non-citizens permit allows the possession of non-high capacity (10 rounds or less) shotguns, rifles, and ammunition. This includes .22 caliber rifles with tubular magazines holding more than 10 rounds, but it excludes high capacity rifles, assault rifles, and handguns. FID and LTC are generally not issued to non-citizens even though Massachusetts law grants some latitude to the Colonel of Massachusetts State Police, who may be petitioned directly.
A 2012 lawsuit, "Fletcher v. Haas", expanded Massachusetts non-citizens' gun rights by allowing possession and purchase of handguns for permanent resident non-citizens (green card holders). non-citizens permits are still in existence and required for all non-permanent resident non-citizens in Massachusetts. As of April 30, 2012, all lawful permanent resident non-citizens (green card holders) are eligible to apply for a Massachusetts resident license to carry ("LTC") or firearms identification card ("FID").
Types of firearm licenses.
Massachusetts issues the following types of firearms licenses:
Additionally, LTC permits may have the following restrictions, however, none of these restrictions have been clearly defined by state law, and are subject to each chief of police's definition of such. Violation of the restrictions imposed by the licensing authority shall be cause for suspension or revocation of the license and a fine of $1,000 to $10,000.
Machine gun licenses.
A license to possess or carry a machine gun may be issued only to a firearm instructor certified by the Criminal Justice Training Council for the sole purpose of firearm instruction to police personnel, or to a bona fide collector of firearms upon application or renewal of such license. 
A "bona fide collector of firearms", for the purpose of issuance of a machine gun license, shall be defined as an individual who acquires firearms for such lawful purposes as historical significance, display, research, lecturing, demonstration, test firing, investment or other like purpose. State regulations provide a presumption that holders of federal curios and relics collector licenses (FFL03) meet this definition.
For the purpose of issuance of a machine gun license, the acquisition of firearms for sporting use or for use as an offensive or defensive weapon shall not qualify an applicant as a bona fide collector of firearms.
Prohibited or restricted firearms.
Massachusetts restricts the sale of handguns not appearing on an "approved firearms roster" issued periodically, and prohibits the sale or possession of certain firearms deemed to be "assault weapons".
Approved firearms roster.
Massachusetts gun dealers may only sell handguns that appear on a state-approved firearms roster, although this does not prohibit LTC holders from lawfully possessing other handguns. , the Massachusetts Executive Office of Public Safety and Security (EOPSS) has published several rosters, which are updated periodically:
Roster additions, which must pass state-define testing by one of several state-approved independent laboratories, are periodically recommended by the Gun Control Advisory Board (GCAB).
Assault weapons.
Assault weapons are defined (with no exceptions, except pre-1994 models) as: (i) Avtomat Kalashnikov (AK) (all models); Action Arms Israeli Military Industries Uzi and Galil; Beretta Ar70 (SC-70); Colt AR-15; Fabrique National FN/FAL, FN/LAR and FNC; SWD M-10, M-11, M-11/9 and M-12; Steyr AUG; Intratec TEC-9, TEC-DC9, TEC-22; and revolving-cylinder shotguns including the Street Sweeper and the Striker 12.
Massachusetts statute specifically references "18 U.S.C. section 921(a)(30) as appearing in such section on September 13, 1994", which is a two-point "banned features" test. The effect is that assault weapons are also defined as:
Firearm storage.
Unless carried or under the control of the owner, state law requires all firearms to be stored in a locked container, or equipped with a tamper-resistant mechanical lock or other safety device (such as a trigger lock), properly engaged so as to render such firearm inoperable by any person other than the owner or other lawfully authorized user. If in a vehicle, firearm must be unloaded and contained within the locked trunk of such vehicle or in a locked case or other secure container, unless the licensee has an LTC, in which case the firearm may, alternately, be under the licensee's direct control. Any firearms that are found to be unsecured may be confiscated by law enforcement officers and license may be revoked. Violation is punishable "by a fine of not less than $2,000 nor more than $15,000 or by imprisonment for not less than 1 1/2 years nor more than 12 years or by both such fine and imprisonment."
In the event a license is revoked for any reason, law enforcement will confiscate all firearms and store them for one year before destroying or selling them unless the revoked licensee transfers ownership to a properly licensed party who then claims the firearms. 
There is no penalty under the law for police authorities who fail to abide by the one-year provision of the statute, however, and many police departments have effectively nullified the one-year requirement in practice, effectively turning this holding period, during which the owner could transfer the firearms to someone else, into outright confiscation. This is accomplished by improperly selling the firearms to a dealer, or by placing the firearms into storage facilities that charge storage fees so high as to make retrieving the firearms prohibitive, then making no effort to inform the firearm owner of these fees. Within a short time, the firearms are then sold by the storage facility to pay costs, the police department receiving some money in return. Efforts to sue police departments for damages have been rejected by the courts there is no private right of action under Massachusetts General Laws ch. 140, § 129D (see "Mirsky v. Barkas", 2011 WL 2371879, at *5-6 [Massachusetts Superior Court January 31, 2011]). The plaintiff in the above entitled action showed that the Quincy Police Department willfully violated the statute, after having brought civil action upon the restoration of his state license.
Also, gun license holders may encounter licensing issues when moving from one town to another. While one city or town police chief may have issued a license, the chief of police in the city or town where the license holder may move does not have to authorize it, and may require that guns be surrendered. If a gun license is not authorized, and the police determine that the resident also holds a license in a different state, they may contact law enforcement in that state and inform them of the action, which could lead to the loss of the out-of-state license as well.
Other laws.
All Massachusetts residents who sell, transfer, inherit, or lose a firearm are required to report the sale, transfer, inheritance, or loss of the firearm to the Firearms Records Bureau (FRB) within the state's Department of Criminal Justice Information Services (CJIS) by filing an FA-10 form.
Massachusetts enacted a red flag law in 2018. A judge may issue an order to temporarily confiscate the firearms of a person who appears to be at risk of harming themselves or another person. A hearing must be held within 10 days of the order being issued. At the hearing, if there is sufficient evidence to substantiate the risk, the person's firearms may be confiscated for up to one year.
A license (such as an LTC or FID) is not required to possess "so-called black powder rifles, shotguns, and ammunition therefor", such as a muzzleloader.
While firearms laws in Massachusetts are some of the most restrictive in the United States, travelers with firearms passing through the state are afforded certain protections per the "safe passage" provision of the Firearm Owners Protection Act (FOPA).
With regards to concealed carry reciprocity, Massachusetts does not recognize any other state's firearms licensing.
References.
 ;templatestyles src="Reflist/styles.css" / ;