Kalashnikov engineers improved the quality of the PPK-20 gun by enhancing some of its tactical, technical, and ergonomic characteristics, the concern's press service said MOSCOW, November 13. /TASS/. Russia’s Kalashnikov concern will present the 9 mm PPK-20 submachine gun at the Dubai Airshow 2025, which will be held on November 17-21 in the UAE, the press service reported. "The Kalashnikov concern will present the 9 mm PPK-20 submachine gun, which, according to military experts, is one of the