The "с" is pronounced like the "s" in "snake"
The "а" is pronounced "ah"
The "и" is pronounced "ee"
The "г" is pronounced "g" as in "gun"
The second "а" is also pronounced "ah".
"sah ee gah"
IOW, "Saiga".
They looked at the characters on the side of the gun and just substituted the most similar looking English letters.
See for yourself here: http://tts.imtranslator.net/Nqbl
The reporter transcribing probably just threw up his hands and said: “it all looks like Greek to me” as he was Russian out the door.