I am a registered Democrat and have been since I was 18. I formerly was somewhat activate in the local, and quite a bit less so at the state. PA Dem's tend to not be rabidly anti-gun, and I have reminded some Congresscritter hopefuls that our state has the most hunters in the entire country, by quite a margin. Philly and another district I won't comment on PC grounds are the exception, of course. Philly pretends to be its own state, and is often smacked by the courts.
Then again, PA has some very nice pro-gun laws. Very handy ones, actually.