The range of cartridges used in this weapon has been expanded as a result of the upgrade MOSCOW, January 21. /TASS/. Russia’s Kalashnikov group has begun the production of an upgraded version of the PPK-20 submachine gun based on the special military operation experience, the company said on its Telegram channel. "Kalashnikov has begun fulfilling its 2026 contractual obligations for the production of 9mm Kalashnikov PPK-20 submachine guns, upgraded based on its effective use in combat,