
The PP-90 is a Russian automatic-only 9x18mm Makarov folding submachine gun, developed by the KBP Instrument Design Bureau in Tula for use with special units of the Russian Ministry of Internal Affairs. It is designed for close quarters combat, particularly engagements that require the weapon to be deployed rapidly in unusual circumstances. The weapon bears a conceptual resemblance to the 9×19mm FMG9 submachine gun made by the American company Ares.
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