How many Russian made weapons have been found on Islamists? This is a non-story.
To everyone except the rabid Jew hating Arabs and western Left, that is.
Their main targets in Syria, in fact, have been the ISIS units from the Stans and Chechnya leaving the primarily Arab "freedom fighters" to the Syrians and Kurds.
When there are first hand reports from Europeans who have been there explaining this sort of little tidbit the knee jerk BS only helps spread the Neocon Globalist smokescreen, Neocons who don't like the US and Trump any more than they liked Quackdaffy and Libya.