In my state, we can sell to each other on the street. Facebook may not allow a lot of things, and maybe they weed them out, but, yes, I've seen firearms for sale on the FB YardSale sites.
I think that the gun show loophole should be closed, and if I'm going to sell to a private party, that the firearm should be registered and transferred, at a gun shop or courthouse, w/a background check run, much like a vehicle is licensed and it's ensured that you have insurance. Folks find the time to sell their vehicles and go to the courthouse, and yes, some skirt the law on that issue too, but, it usually comes back to bite them. I don't want my firearms ending up in the wrong hands. Some troubled, young, kid's hands. That's why I sell back, or trade, with the dealer. I shouldn't be able to dial up Joe Blow, and buy an AR with 10 magazines, from some guy advertising it, privately, displayed on his dryer, or bed. That's probably not the same kind of private dealer, that I had to pick mine up from, when I purchased from an internet company.
