Wow. I had no clue. Ok, so for those of you that live there and have to put up with this **** I have a couple more questions:

1) If you live in Mass and have a legal CCP (no restrictions) and you buy a gun in another state, like say a Shield that is not Mass compliant, can you return with it and register it? How does Mass know if it is "mass compliant"?

2) Lets say you wait and S & W finally releases a Mass compliant Shield with 6.5lb trigger pull. Is there anything from preventing you from doing a mod to the gun and putting in the non-compliant trigger after you get it home?