I have no doubt that some guns from the US make their way south. I doubt that there is a concerted effort on the part of the dealers to arm drug runners. We are talking about big money here and there are many global gun runners only to willing to deliver the goods. When you can buy a real AK47 on the world market for $40 why would you go thrue the trouble of importing guns from the US? And rocket propelled granades,hand granades and other heavy military weapons. Only the most antigun and stupid people would believe that material is for sale over the counter in US gunshops. I don't think this lie will go very far.