The Modular Semi-Automatic Pistol (MPS) cal. 9 x 19 mm is a personal weapon designed for shooting at short distances (up to approx. 50 m). It works on the principle of short recoil of the barrel with the breech locked by skewing the barrel in the vertical plane. The MPS is a cockless pistol, equipped with a striker-type trigger system with its initial tension (semi DAO), ensuring the safety of using the weapon with a cartridge in the chamber. The pistol is equipped with trigger and firing pin automatic fuses that unlock the weapon immediately before firing as a result of pressing the trigger. It can be used by both right and left-handed shooters by placing the lock stop lever on both sides. The magazine latch can be placed on the right or left side of the grip, depending on the user's preferences. The shape of the bow allows for convenient use with protective gloves, which allows it to be used both in summer and winter.