CNN:

(CNN)US-supplied weapons originally intended for moderate allies in Syria have ended up for sale on jihadist online forums in the country's northern al Qaeda heartland.

In a remarkable snapshot of the disastrous outcomes and thwarted ambitions of the West's six-year effort in Syria, an M16 assault rifle -- whose serial number suggests it was originally supplied as part of a US-taxpayer-funded effort to defeat extremists in the region -- was offered to CNN by a resident of the city of Idlib over the encrypted messaging app Telegram.

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