MA Law Regarding Guns and Masks:

For MA LTC Holders concerned about being both masked and armed, here is the relevant law:

C. 265 § 17 Armed Robbery

Whoever, being armed with a dangerous weapon, assaults another and robs, steals or takes from his person money or other property which may be the subject of larceny shall be punished by imprisonment in the state prison for life or for any term of years; provided, however, that any person who commits any offence described herein while masked or disguised or while having his features artificially distorted shall, for the first offence be sentenced to imprisonment for not less than five years and for any subsequent offence for not less than ten years. Whoever commits any offense described herein while armed with a firearm, shotgun, rifle, machine gun or assault weapon shall be punished by imprisonment in the state prison for not less than five years.

Any person who commits a subsequent offense while armed with a firearm, shotgun, rifle, machine gun or assault weapon shall be punished by imprisonment in the state prison for not less than 15 years.

C. 268 § 34: Disguises to obstruct execution of law, performance of duties, or exercise of rights

Whoever disguises himself with intent to obstruct the due execution of the law, or to intimidate, hinder or interrupt an officer or other person in the lawful performance of his duty, or in the exercise of his rights under the constitution or laws of the commonwealth, whether such intent is effected or not, shall be punished by a fine of not more than five hundred dollars or by imprisonment for not more than one year and may if imprisoned also be bound to good behavior for one year after the expiration of such imprisonment.

If you are not committing a crime, merely wearing a mask while armed is not an issue.