Cussed,
At the NRA show in Charlotte, there were, I don't know, maybe 50,000 of us in the building? I have no idea. But one of the speakers made the remark "lock the doors officers, all the 'nuts' are in here!" Got a huge laugh.
As someone else said, you are already on the 'list' and using that as a reason not to support the NRA is a little weak. If you disagree with some of their views, that's ok, but still support them. They aren't perfect, and I don't always agree with them myself, but they beat the heck out of nothing.
I am a registered Republican too, but I don't always see eye to eye with that party either.
Join the NRA, and vote. If you don't vote, shut up, you have no right to speak about issues.
My $.02