If he were to sign the AWB, I'd dump him in a heartbeat.
That said, I might not vote for him anyway. There are too many other flies in his pudding--- Patriot Act, amnesty for illegals, etc. The list is long and nasty. Someone has a sig line that reads like 'don't confuse a longer leg chain with freedom.' He might SAY he's in favor of personal firearms rights, all the while surrounding RKBA with dozens of new "rights." Each new 'right' will infringe the 2nd Amendment only 'slightly' but in the end, he can accomplish the same thing the Dems want, but with OUR help.
Don't listen to what he says, watch what he does, and remember, he has hands in every government agency and every citizen's pocket.
By the way, never, never, NEVER EVER go on record that you unconditionally support a controversial opinion, issue or person. Let 'em work and worry for your support. You can't keep a politician honest (as long as he's alive) but you can keep him looking over his shoulder.