There is no such thing as a licensed gunsmith.
Wrong.
Again.
M.G.L.c. 140, § 122.
Licenses; contents; fingerprints of applicants; procedure on refusal of license; fees; punishment for improper issuance.
The chief of police or the board or officer having control of the police in a city or town, or persons authorized by them, may, after an investigation into the criminal history of the applicant to determine eligibility for a license under this section, grant a license to any person to sell, rent or lease firearms, rifles, shotguns or machine guns, or
to be in business as a gunsmith.
M.G.L.c. 140, § 123. Conditions of
licenses.
Eleventh, That the second, fifth, eighth and ninth conditions shall not apply to a gunsmith with regard to repair or remodeling or servicing of firearms, rifles or shotguns unless said gunsmith has manufactured a firearm, rifle or shotgun for the purchaser, but
said gunsmith shall keep records of the work done by him together with the names and addresses of his customers. Such records shall be kept open for inspection by the police at all times.
M.G.L.c. 140, § 128. Penalty for violation of statute on selling, renting or leasing weapons; evidence on sale of machine gun.
Section 128. Any
licensee under a license described in section one hundred and twenty-three, and any employee or agent of such a licensee, who violates any provision of said section required to be expressed in the second, fourth, sixth, seventh, eighth, ninth, sixteenth, eighteenth, nineteenth, twentieth or twenty-first condition of said license, and except as provided in section one hundred and twenty-eight A, any person who, without being licensed as herein-before provided, sells, rents or leases a firearm, rifle, shotgun or machine gun, or
is engaged in business as a gunsmith, shall be punished by a fine of not less than $1,000 nor more than $10,000, or by imprisonment for not less than one year nor more than ten years, or by both such fine and imprisonment.
G.L.c. 140, § 131. Licenses to carry firearms; Class A and B; conditions
No large capacity weapon or large capacity feeding device shall be removed from the premises except for the purposes of: (i) transferring such firearm or feeding device to a licensed dealer; (ii) transporting such firearm or feeding device to
a licensed gunsmith for repair;
G.L.c. 269, § 10. Carrying dangerous weapons; possession of machine gun
... or (v) any
gunsmith duly licensed under the applicable federal law.
Here's a dime. Buy a clue.