An anonymous reader writes: A report entitled "The Online Trade of Light Weapons in Libya" on Thursday revealed machine guns, grenade launchers and anti-tank missiles are being traded in Libya via Facebook. Some of the weapons include those supplied by the U.S. allies to their Libyan proxies, while most come from raids by militants on the arsenals of former Colonel Muammar Gaddafi. "Many of the players in this new market began to use new technologies to hawk their wares," the paper says. Online sales from social media platforms such as Facebook "are one of the tools currently being used for this purpose." Machine guns made up the bulk of the Facebook offers, including six Soviet-made 12,7mm DShKMs, 11 14,5mm KPVs, and one Belgian 12,7mm FN Browning M2-type heavy machine gun. Large-caliber anti-material sniper rifles and a handful of other weapons have also been advertised on Facebook, according to the research.