No idea if that specific site or operation is real, but international arms dealers who *would* do that sort of deal are real and have been around for forever. That's how the IRA got a lot of their weapons, for example. This is just them getting on the internet, I suspect.
Note that a lot of those weapons in that article are not available for legal civilian purchase anywhere at any price in the US and therefore cannot be coming from normal US civilian sales channels.
I would also point out that there is open trading on the internet on sanctioned (as in banned) gun parts (if not guns) between countries. You just have to Google it - on one of the forums I am on, members reported purchasing 8 round Russian magazines for Saiga 12s, which are technically illegal to import into the US, through open sellers in Russia. They turn up in unlabeled packages in the mail some weeks later. I never got any because by the time I got mine, other members on another forum were working on a legal US made 10 rounder and the 19 round drum - and the rest is history, as the plethora of legal US mags and drums for the S12 can witness. And yeah, it was illegal - with legal mags on the way at the time it wasn't worth the risk in the least for just three more rounds.
Note that it's illegal to import and use certain magazines, but you can use domestically made copies of them legally. Yes, it's a stupid law.
Kind of an eerie, but fascinating, read, though I have no clue as to its legitimacy.
It is a slightly different subject, but it reminds me of an article
Rolling Stone ran two years ago about David Packouz and Efraim Diveroli, two guys who became big in the arms industry. Really great read into the international arms trade. It might have come up in this thread.
Except for more than a few factual errors and glossing over of illegalities. The AEY guys had complaints filed against them by more legitimate arms and ammo dealers because they were undercutting the competition by illegal conduct, not simply because they'd underbid everyone else. The latter happens in the business all the time - but the legit traders all know there's a price floor if you're doing everything legitimately and the only way you can get significantly below it is by breaking the rules.
It should also be mentioned that the AEY-supplied ammo was found to be quite defective and was *sold* to them as defective. It got more than a few Afghans and Iraqi police
killed.