That's right: this isn't the infamous "Deep Web" where you can hire a hitman or buy a human baby. Facebook -- as in, the place where grandmothers and grandchildren trade happy birthday messages -- is crawling with enough assault rifles to overthrow a Central American country:
Hell, you could take over Western Canada with the stuff on this page alone.
The sellers have their own fan pages, so all takes is a search. Sure, some of these dealers claim they are only interested in selling their guns through a licensed firearms dealer. But devote a few minutes to looking and you'll soon find someone not only willing to sell you a gun but to do so in a way that avoids any pesky background check. For example: