Yes the sidekick is legal in Mass............Unfortunately I am from the peoples replublic of Mass. with that borderline socialist AG Tom Reilly who hates guns and gun owners, nitwit Ted Kennedy and "beautiful person" Barney Frank who loves his male aides but fights against AIDS while loving free love. You know, the place where we allow any one to many anyone and soon to allow then to marry the pet of thier choice or anything else they choose, AND caused the start of the entire marriage choice problem we now have throughout the country ...