That's easy; just let the AWB sunset. The pro-2A types are almost all pretty moderate; all it takes to get their vote is to not actively work against them (i.e., pass anti-gun legislation).
It'll be a real shame to see G.W. lose the 2004 presidential election like his father did in 1992, over a gun issue that Republicans really shouldn't have anything to do with in the first place. After all, it isn't as if he's going to gain any votes from the anti-gunners, since they're all going to vote Democrat no matter what.
Any establishment puppet would not be allowed to do that. Guess we will know for certain soon.