A report by the London-based Conflict Armament Research small-arms research organization says ISIS is using U.S. weapons supplied by Saudi Arabia to moderate Syrian groups. The study documented weapons seized by Kurdish forces from ISIS fighters in Iraq and Syria over a 10-day period in July. The organization says ISIS disposed of ‘significant quantities’ of U.S.-made small arms including M16 assault rifles. It includes photos of ‘Property of U.S. Govt’ markings on the weapons. It also finds that anti-tank rockets used by ISIS in Syria are ‘identical to M79 rockets transferred by Saudi Arabia to forces operating under the Free Syrian Army umbrella in 2013.’ The rockets were made in Yugoslavia in the 1980s.