I've heard both "syga" and "sega." I've always called it the "sega" and I always say it in the little tune from the Sega Genesis (seeegaaaaaaaaaaa).
Even if it is "syga" ill never give up my tune!!
It's pronounced like "Sie-Gah".
There's a product video on youtube from the actual russian company where they use the name.
I don't know what it;s called but I know the sound it makes when it kills a man
What do YOU mean "you people?"