Russian arms manufacturer JSC Izhmash is gearing up to produce the Saiga-9 carbine, a civilian version of the Vityaz-SN submachine gun. The new Saiga-9 will be chambered in 9mm (aka 9×19).
The new carbine was introduced at the 2012 Russian Hunting and Sporting Goods show in September. Currently, I don’t have much information on the Saiga-9, other than it is the “civil equivalent” of the SMG.
Below is a video of the Vityaz-SN in action. Expect that the Saiga-9 will look similar (with a longer barrel no doubt), but will lack the automatic fire.
The Vityaz-SN uses 30-round magazines, which I expect would carry over to the new Saiga-9 carbine. I would also expect the standard iron sights, Picatinny rail on the receiver cover and the folding stock to carry over.
The only question is would Izhmash make a pistol version of this gun, dropping the stock and keeping the short barrel? That might be a Saiga-9 that would be extremely popular. But then again, I expect a carbine version to be very popular in the US as well. (Assuming it is imported.)