I grew up in Boston and have zero desire to move back there with their whacked out gun laws. However being that my family still lives there I get to go back and visit. In June my wife and I will be traveling to Mass to be with my family. Now the legal question............

My family has a vacation house in NH of which we will be spending 1 weeks time there. NH accepts Colorado carry permit and the firearm I would be carrying. Mass does not accept either.

Is it against the law to fly there lawfully, possess the firearm in mass and only begin to carry it once we cross state lines into NH? Or is it illegal once I cross into Massachusetts and have the firearm in my check baggage?

I have flown with firearms before but only to states that allow it.

Thoughts? Couldnt find anything on it.

joe