Massachusetts Gun Laws Laws 2026 — Is Gun Laws Legal in Massachusetts?

You attempt to buy more ammunition than the state allows in a single transaction, or purchase from multiple retailers in one day to circumvent a per-transaction limit.

You build a firearm from a kit or 3D-printed parts — commonly called a 'ghost gun' — with no serial number, and you do not serialize it or transfer it through a licensed dealer.

You carry a concealed firearm across state lines into a state that does not recognize your home state's concealed carry permit, believing your permit is valid nationwide.

You modify a standard-capacity firearm magazine to hold more rounds than legally permitted — by replacing the floor plate, spring, or using a conversion kit — in a state with magazine capacity limits.

You modify or remove a firearm's safety features — such as disabling a drop safety, removing a loaded chamber indicator, or installing an unapproved trigger modification — to improve performance.

You acquire or build a short-barreled rifle, silencer, or other NFA-regulated item without filing a tax stamp application with the ATF and receiving approval.

You live in one state but drive to a neighboring state to buy a firearm directly from a dealer or private seller, believing it is simpler than dealing with local restrictions.

You sell a firearm to another private individual in a face-to-face transaction without conducting a background check through a licensed dealer, believing private sales are exempt.

You buy a firearm from a licensed dealer on behalf of someone who cannot legally purchase one themselves — a prohibited person, an out-of-state resident, or someone under 21. You fill out the Form 4473 as the buyer but the gun is really for them.

You buy and sell firearms regularly as a side hustle — purchasing from private sellers or gun shows and reselling online or to acquaintances without a Federal Firearms License.