Additionally, MA State Law:
http://www.mass.gov/legis/laws/mgl/140-129c.htm
Chapter 140: Section 129C. Application of Sec. 129B; ownership or possession of firearms or ammunition; transfers; report to executive director; exemptions; exhibiting license to carry, etc. on demand
Section 129C. No person, other than a licensed dealer or one who has been issued a license to carry a pistol or revolver or an exempt person as hereinafter described, shall own or possess any firearm, rifle, shotgun or ammunition unless he has been issued a firearm identification card by the licensing authority pursuant to the provisions of section one hundred and twenty-nine B.
No person shall sell, give away, loan or otherwise transfer a rifle or shotgun or ammunition other than (a) by operation of law, or (b) to an exempt person as hereinafter described, or (c) to a licensed dealer, or (d) to a person who displays his firearm identification card, or license to carry a pistol or revolver.
A seller shall, within seven days, report all such transfers to the executive director of the criminal history systems board according to the provisions set forth in section one hundred and twenty-eight A, and in the case of loss, theft or recovery of any firearm, rifle, shotgun or machine gun, a similar report shall be made forthwith to both the executive director of the criminal history systems board and the licensing authority in the city or town where the owner resides. Failure to so report shall be cause for suspension or permanent revocation of such person’s firearm identification card or license to carry firearms, or both, and shall be punished by a fine of not less than $200 nor more than $1,000 for a first offense and by a fine of not less than $1,000 nor more than $5,000 for a second offense.
The provisions of this section shall not apply to the following exempted persons and uses:
(a) Any device used exclusively for signalling or distress use and required or recommended by the United States Coast Guard or the Interstate Commerce Commission, or for the firing of stud cartridges, explosive rivets or similar industrial ammunition;
(b) Federally licensed firearms manufacturers or wholesale dealers, or persons employed by them or by licensed dealers, or on their behalf, when possession of firearms, rifles or shotguns is necessary for manufacture, display, storage, transport, installation, inspection or testing;
(c) To a person voluntarily surrendering a firearm, rifle or shotgun and ammunition therefor to a licensing authority, the colonel of the state police or his designee if prior written notice has been given by said person to the licensing authority or the colonel of the state police, stating the place and approximate time of said surrender;
(d) The regular and ordinary transport of firearms, rifles or shotguns as merchandise by any common carrier;
(e) Possession by retail customers for the purpose of firing at duly licensed target concessions at amusement parks, piers and similar locations, provided that the firearms, rifles or shotguns to be so used are firmly chained or affixed to the counter and that the proprietor is in possession of a firearm identification card or license to carry firearms;
(f) Possession of rifles and shotguns and ammunition therefor by nonresident hunters with valid nonresident hunting licenses during hunting season;
(g) Possession of rifles and shotguns and ammunition therefor by nonresidents while on a firing or shooting range;
(h) Possession of rifles and shotguns and ammunition therefor by nonresidents traveling in or through the commonwealth, providing that any rifles or shotguns are unloaded and enclosed in a case; 
