Polish machine gun caliber 9 mm, cartridge 9 × 18 mm Makarov. Developed in the 60s of the twentieth century by prof. Peter Wilniewczyc. Weapons designed for certain military detachments, including the crews of combat vehicles, also used by the Militia units.

1963 model machine gun is an individual weapon of self-repeat. The principle of operation is based on the recoil lock the free movement of delayed return. The weapon shot from the lock open, lock the external type slides over the barrel and includes it in the front position. This is typical of guns resolved self-repeat, rarely used in machine guns. The gun comes with a little metal flask convenient folding, sliding to the rear, with a sofa footer. On the front is a folding front grip.