Is the AR-15 legal in Massachusetts?

Massachusetts has an assault weapon ban (Yes). Standard AR-15 configurations are restricted, but compliant "featureless" or otherwise-modified builds are typically legal. Always verify your specific configuration against current Massachusetts statute before purchasing.

What is the magazine capacity limit in Massachusetts?

10 rounds. Standard 30-round magazines may not be legal for sale; compliant magazines (or pinned/welded options) are required for new builds.

Does Massachusetts require a permit to buy a firearm?

Yes (FID or LTC). A permit, license, or qualifying ID is required in Massachusetts before purchasing a firearm.

Can I conceal carry in Massachusetts?

Massachusetts concealed carry status: Shall Issue (de facto). The state must issue a permit to applicants who meet the qualifying criteria.

Is open carry legal in Massachusetts?

Massachusetts open carry: Yes (LTC required). Local restrictions may still apply in cities, parks, schools, or government buildings.

Are suppressors and SBRs legal in Massachusetts?

NFA item status in Massachusetts: Suppressors banned; SBR/SBS OK. Some federally-regulated items may be restricted at the state level even with a federal tax stamp.

Does Massachusetts require background checks for private sales?

Yes. Background-check requirements in Massachusetts extend beyond licensed-dealer sales — most private transfers must run through an FFL.

All States

Massachusetts Gun Laws

strict

Firearm Regulations

Assault Weapon Ban

Yes

Mag Capacity Limit

10 rounds

Permit to Purchase

Yes (FID or LTC)

Firearm Registration

De facto

Concealed Carry

Shall Issue (de facto)

Open Carry

Yes (LTC required)

Red Flag Law

Yes

Background Check (Private)

Yes

NFA Weapons

Suppressors banned; SBR/SBS OK

State Preemption

Key Notes

FID or LTC required to own any firearm. Approved firearms roster for handgun sales. Suppressors restricted to law enforcement.

•Yes (FID or LTC) Permit to Purchase — A Firearm Identification (FID) card is required for rifles and shotguns; a License to Carry (LTC) is required for handguns. Without one of these, you cannot legally own any firearm.
•Suppressors banned; SBR/SBS OK (NFA) — Suppressors are restricted to law enforcement only. Short-barreled rifles and short-barreled shotguns are legal with the federal tax stamp and an LTC.
•Yes (Assault Weapon Ban) — Massachusetts bans assault weapons by name and feature. The AG's 2016 enforcement notice broadened the ban to include 'copies or duplicates' of named weapons.
•10 rounds (Mag Limit) — Magazines over 10 rounds manufactured after September 13, 1994 are banned. Pre-ban magazines are grandfathered and legal to possess.
•No (State Preemption) — Massachusetts has no preemption law. Cities and towns can and do pass their own additional firearm regulations.
•De facto (Firearm Registration) — While there is no formal registry, all sales and transfers are recorded through the state, creating a de facto registration system.

Last updated January 15, 2026

How Massachusetts Law Affects Your AR-15 Build

Plain-English implications for builders, derived from the regulations above.

Assault Weapon Restrictions Apply

Massachusetts restricts firearms classified as "assault weapons." Standard AR-15 configurations with features like a pistol grip combined with a collapsible stock, threaded barrel, or flash hider may not be sold or transferred in their off-the-shelf form. Many Massachusetts builders run "featureless" configurations to remain compliant.

NFA Restrictions Apply

Massachusetts restricts some or all NFA items (Suppressors banned; SBR/SBS OK). Suppressors, SBRs, or other regulated items may not be available even with a federal tax stamp. Verify before buying a 14.5" barrel or pinned muzzle device intended for SBR conversion.

Permit Required to Purchase

Massachusetts requires a permit, license, or other prerequisite before you can purchase a firearm (Yes (FID or LTC)). Factor permit application time into your build timeline before ordering a complete lower or completed rifle.

Background Checks on Private Transfers

Massachusetts extends background-check requirements beyond licensed-dealer sales (Yes). Private transfers of complete firearms typically must run through an FFL.

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