The CZ Scorpion EVO 9mm pistol s a blowback-operated semi-auto in 9mm with a short 7¾” barrel. Equipped with newly designed low-profile sights, its rear sight has four different aperture sizes for everything from close quarters to long distances. The EVO features an 11” Picatinny rail perfect for mounting optics. Starting in 2016, Scorpion Pistols feature 1/2×28 threads hidden underneath the factory flash-hider, meaning users can fit either 1/2×28 or 18×1 accessories to the muzzle. Also added is a QD sling swivel pocket integrated into the rear sling attachment point. Comes with one 20RD magazine.