False. Untrue. Check the link. He changed or added nothing in Massachusetts which was already a permanent AWB. What you are saying is simply wrong.
It’s ironic that you lie about Mitt Romney’s record then bandy about claims about him being ‘dishonest’...
In 1994, Romney supported the Brady Bill as well as the federal ban on assault weapons. He remarked that, “That’s not going to make me the hero of the NRA.” In 2004, when the federal ban expired, then-Governor Romney enthusiastically signed a permanent ban on assault weapons in Massachusetts.
http://amspec.org/dsp_article.asp?art_id=11120