Figures the first post I read here is about IL. Around here when a polititian runs for reelection, we don't call him incumbent, it's unindicted.
So I guess the usual welcome to APS may be offered with a bit of caution in your case. Usually we say "Howdy" and remind the newbie that ammo and beer all around are on him. But in your case it may be appropriate to add "That is, if it is legal for you to purchase, offer, give, or exchange" any of said items.
But wait! Didn't that nice, polite, articulate youg man who used to be a Senator from your state just eliminate DADT? Seeing as how he is a community organizer and you probably live in a community it may apply to your purchasing, offering, giving or exchanging beer and ammo, too.
stay safe.