The PP-90, is a Russian produced and manufactured submachine gun by the KBP Instrument Design Bureau in Tula, Russia. The firearm was an apparently unsuccessful Soviet imitation of the ARES FMG -- identical in most respects to the ARES FMG except that the American version of the weapon is fully automatic.
The PP-90 is is carried in a covert green cloth sack with two spare magazines. Like numerous Soviet weapons, the PP-90 features an oversized trigger guard so as to disallow the firearm to be discharged by someone wearing gloves in cold Russian weather. Compared to its American similar firearm, the main application for the Russian weapon was supposed to be in the prevalent area of special operations. Opinions however differ as to the Russian weapon's reliability and handling characteristics.
* Many critics of the PP-90 in the Russian army state that the weapon has poor handling characteristics and terrible ergonomics. After initial trials with the weapon in the Russian military, it was believed that other, superior weapons made after production were placed in storage and the weapon was terminated.