Do me a favor and check the gun control portion of Kerry's voting record as a senator here on this site: http://www.vote-smart.org/voting_category.php?can_id=S0421103 .
I'm finding it hard, based on the facts given, to substantiate the claims made by the NRA. It may be because I'm half asleep right now, or they could be relying on the truth that some will blindly follow while dynamically failing to research and fact-check thoroughly enough on their own.