I saw one picture of a captured weapons cache and lying on the top of the pile of rusted AKs was a state of the art Fabrique Nationale P90 complete with suppressor.
The jihadis are getting equipped by our 'allies' in Europe.
The Stockholm International Peace Institute graphed where Iraq got all its weapons over the past three decades. The United States provided 1% of total weapons. The USSR came in first with over 50%.