Compliance Guides
Step-by-step guides to help you navigate Massachusetts firearms compliance.
Purchase Compliance
4Buying a Handgun in Massachusetts: Step-by-Step Compliance Guide
A comprehensive guide to legally purchasing a handgun in Massachusetts, including the approved firearms roster, the electronic registration and reporting process, private sale requirements, and common compliance pitfalls. Updated for Chapter 135.
Frame Transfers: How to Buy Off-Roster Handguns in Massachusetts
Massachusetts restricts dealer handgun sales through the EOPSS Approved Firearms Roster and the AG's 940 CMR 16.00 consumer protection regulations. Dealers also sell handgun frames and parts separately, and the buyer assembles the handgun and registers it. No statute or regulation says whether the roster rule applies to a frame sold by itself.
Massachusetts Ammunition Laws: Purchase, Storage, and Transport
Massachusetts generally requires a firearms license to buy or possess ammunition. This guide covers who can purchase, what types are legal, reloading components, out-of-state purchases, online sales restrictions, and storage rules.
Private Firearms Sales in Massachusetts: Legal Guide
Massachusetts law allows licensed individuals to sell firearms privately under the rules of M.G.L. c. 140, Section 128A. This guide covers the 4-transfer annual limit, eFA-10 filing requirements, Chapter 135 changes, and what both buyers and sellers must know.
Storage Requirements
1Transportation
2Transporting Firearms in Massachusetts: Legal Requirements
Massachusetts has specific requirements for transporting firearms in vehicles. This guide covers the current rules for LTC holders and FID holders and the federal safe-passage provision for qualifying interstate travel.
Vehicle Carry in Massachusetts: Passengers, Storage, and Rideshare
Under MGL c. 140, Section 131C, an LTC holder who carries a loaded handgun in a vehicle must keep it under direct control. Section 131C does not mention passengers. Chapter 135 expanded vehicle carry rules to FID holders and clarified locked container definitions.
Reciprocity
1Serialization & Registration
2eFA-10 Registration Guide: When and How to File in Massachusetts
Massachusetts uses the MIRCS Unified Gun Portal for firearm registration and transaction reporting. Deadlines and required participants vary by acquisition, transfer, import, inheritance, manufacture, loss, or theft.
Massachusetts Firearms Registration Deadline: What to Do Before October 28, 2026
EOPSS Guidance #5, issued September 18, 2026, says individuals must comply with the registration and serialization requirements in Sections 121B and 121C beginning October 28, 2026.
Self-Defense
2Home Defense by Unlicensed Residents in Massachusetts
The Castle Doctrine protects the act of defending your home but not the unlicensed possession of the weapon used. A non-LTC resident who uses a firearm in home defense may face misdemeanor possession charges under Section 10(h) even if the self-defense claim succeeds. Chapter 135 did not create a home defense exception.
Self-Defense Law in Massachusetts: Duty to Retreat and Castle Doctrine
Massachusetts requires retreat before force in all public locations. The Castle Doctrine (MGL c. 278, Section 8A) eliminates the duty to retreat only inside the dwelling against an unlawful intruder. The burden of proof falls on the Commonwealth to disprove a self-defense claim. Chapter 135 of the Acts of 2024 did not change self-defense law.
Legal Analysis
11"Readily Converted": The Undefined Middle Ground in Massachusetts Firearms Law
Massachusetts defines a firearm to include an item designed to or readily convertible to expel a shot or bullet and excludes a permanently inoperable firearm. The statute does not provide a general definition of readily converted.
Building a Firearm from a Lower Receiver in Massachusetts
Massachusetts treats qualifying frames, receivers, and unfinished frames or receivers as firearms. Classification depends on statutory readiness and marketing tests, while serialization, registration, licensing, and assault-style-firearm restrictions must be checked separately.
FOPA Safe Passage Through Massachusetts
The Firearms Owners' Protection Act (18 U.S.C. Section 926A) permits firearm transport for a lawful purpose through states that otherwise prohibit possession, provided the traveler is not prohibited from transporting, shipping, or receiving firearms under the federal firearms chapter, may lawfully possess and carry the firearm at both endpoints, and transports it unloaded under the statute's accessibility and locked-container conditions. EOPSS guidance reads Commonwealth v. Marquis (2025) to mean that commuting to a Massachusetts workplace is not "traveling through."
Inheriting Firearms in Massachusetts: Legal Guide for Heirs
Inheriting firearms in Massachusetts involves a 60-day licensing exemption after an heir or devisee takes possession and licensing obligations for continued possession. Individual registration requirements through the MIRCS portal begin October 28, 2026. This guide covers executor duties, out-of-state inheritance, non-compliant firearms, and step-by-step instructions.
Is My Rifle Legal in Massachusetts? A Compliance Guide
Massachusetts does not use the approved-handgun sales roster for rifles, but Section 121 includes an assault-style firearm roster, named models, copy-or-duplicate rules, and feature tests. This guide explains the complete classification framework.
Marijuana and Firearms in Massachusetts: The Federal-State Conflict
Massachusetts permits adult marijuana possession, but federal firearms law remains separate. A 2026 product-specific Schedule III action, broader pending rescheduling, and the narrow Hemani decision do not create a blanket federal firearms rule for all marijuana users.
Nonresident Firearm Registration Exemptions in Massachusetts
A nonresident possessing a firearm under a Massachusetts temporary License to Carry issued under Section 131F is exempt from the registration regulations.
Open Carry in Massachusetts: Legal Framework and Practical Limits
Massachusetts law does not expressly require an LTC holder to conceal a carried firearm, but licensing, prohibited-place, public-safety, and conduct rules still apply. No reviewed appellate decision establishes that open carry alone requires license revocation.
Suppressors, New Hampshire, and Dual Residency: A Path That Stays in New Hampshire
Massachusetts prohibits suppressor possession except for the narrow statutory exemptions, with no general NFA exception. Federal regulations recognize residence in each state during the time the person actually resides there, and a transfer must comply with federal residency requirements and state and local law. A Massachusetts resident who genuinely maintains a New Hampshire residence can legally purchase and own a suppressor through their NH residency, provided the suppressor never enters Massachusetts.
Three Grandfathering Dates and the Burden of Proof
Massachusetts law uses different historical dates for large-capacity feeding devices, certain copies or duplicates, and assault-style firearms.
What Counts as a "Locked Container" in Massachusetts
Massachusetts defines a locked container as one opened only by key, combination, or similar means and expressly includes certain locked compartments in an unoccupied motor vehicle. The definition does not name biometric locks.