The P-64 is a compact, all-steel Polish military pistol from the Cold War, chambered in 9x18mm Makarov, known for its reliability and small size but also its notoriously heavy double-action trigger pull and sharp recoil, functioning like a Walther PPK but with distinct Polish features like a decocker/safety lever and heel magazine release, making it a popular but challenging surplus firearm for concealed carry.