That’s a good idea AU. Kinda like buying something from Craig’s List. Utilize a neutral safe zone.
Last time I sold some extra 22LR I had, via ArmsList I met the buyer in the parking lot of our local gun shop. Lots good folks going in and out continuously. A lot of them carrying I expect....as I was.
Interesting side, the fellow had moved here (KY) from the Peoples Republic of NY. Said he used to be anti gun. Then he and the wife began revising their thinking, took a shotgun training class. Left NY for here and now he believes “an armed society is a polite society”. Nice guy. Good to see a convert to our side.