c. 266, § 121
Entry on land with firearms
Official text prohibited actmental stateif conditionpenaltylegal term
Whoever, without right, enters upon the land of another with firearms, with intent to fire or discharge them thereon, and, having been requested by the owner or occupant of such land or by his agent to leave such land, remains thereon, shall be punished by a fine of not more than two hundred dollars or by imprisonment for not more than two months, or both.
Simplified explanation
Entering another's land without right with firearms intending to fire them, and staying after being asked to leave, is punishable by a fine of up to $200, up to two months in jail, or both.