So the wife and I are looking at retiring in 5 years, buying a sailboat, and going sailing while we are still young enough to do it (We will be 55 then). So my question is, can we keep our pistols on the boat when visiting say Massachussetts? The boat would be our home, and keeping a pistol in one's home is legal in Mass without a carry permit. So would we be legal, as long as the pistol conforms to the state's gun laws? Obviously we wouldn't be able to leave the boat while armed in Mass.