The Weapon fires 9mm Makarov {9x18mm** . My research shows this model to still be duty issue weapon to the Police and Military Forces of The Czech Republic. There is virtually no recoil, probably due to it being a little bit heavier than the Pistolet Makarova. The barrel has polygonel {sp?** rifling which makes it more accurate somehow. the magazine holds 12 rds and one in the pipe. it has the 3 dot system for aiming. kimber, you will love your CZ!!!