that's what I'm thinking ... it is my prime suspect in the penetration of M1's in Iraq involved in non-tank battles ... I think it is the AT-14 but my recollection may be faulty ... I'll bet the serial numbers, if they left the canisters behind, could be traced to Syria or Iran, which at one time supplied Syria heavily ...
Very plausible, particularly if they mask the attack of one of them with several RPG rounds.