Citation(s) from the GunPolicy.org literature library
Giffords Law Center to Prevent Gun Violence. 2020 ‘Gun Shows in Massachusetts.’ Gun Sales. San Francisco, CA: Giffords Law Center to Prevent Gun Violence. 26 November
Gun Shows in Massachusetts
A licensed firearms dealer in Massachusetts is permitted to sell or transfer firearms and ammunition at a gun show open to the general public, as long as the dealer complies with the licensed dealer conditions in Massachusetts law and ensures that such sales or transfers are in conformity with federal and state law, including the prohibitions on sales to purchasers who lack the required firearm identification cards, licenses to carry firearms, and/or permits to purchase, rent or lease firearms.
Unlicensed sellers may transfer "not more than four" firearms in any one calendar year, so long as both the buyer and the seller have the proper cards, permits or licenses to possess or purchase the types of firearms being transferred, and the seller reports the sale to the state, as required by law…
[Editor's note: The Giffords Law Center to Prevent Gun Violence regularly updates its webpages with new data as US gun regulation evolves state by state. For the most up-to-date information on US gun laws, please refer to the Giffords URL below]