I think. He might have said it is not Iranian, but, I am not sure. At any rate when one traces some of the markings in other videos, they lead to technical information and shipping lists of very old Russia munitions.
Example:
Onopoyka BPX is referred to in the index as being on page 334 (click here).
These are all news articles about old Russian activities. Very old, like decades old, like Cold War old.
onopa bpx has no meaning in the Russia language, so these are old Russian munition designations and machinery parts. The description here lists all kinds of parts in both English and Russian to types of machinery.
onopa bpx is within the text of this old CIA report. (click here) Of course, the numbers on the 'barrels' are simply the manufacturing number and stock number of the particular item so it can be used efficiently.
I sincerely object to any indication this is Iranian in source. It does not appear at all to be. I truly believe these are old munitions and construction items Syria has stored somewhere. If one recalls, NATO strongly objected to any munition sales to Syria and I think this is clear indication those objections are being honored. Assad's military is taking whatever they can find and fashion parts for improvised explosive devices.
I do not believe Iran is involved with Assad to kill the people. I believe when Iran is asking for their nationals trapped in Syria it is a sincere asking and more than likely Assad is using those people as hostages for sales of munitions. I truly believe Iran is not involved with Assad, but, is seeking relief from him. NATO can and should approach Iran through their Swedish ambassadors to find out the ongoing relationship and if there is pressure on Iran to assist killing the Syrians. This is evidence Assad is running out of options and not receiving new munitions.