Introduced in 2012 single shot air pistol, caliber 4.5 mm (.177) with a detachable cylinder for the sole use of compressed air up to 250 bar. with the air pressure regulator inside of the pistol frame. Innovative shot recoil elimination system (PARDINI patented). New, all adjustable, two-stage trigger with an easily accessible switch for Dry Fire. Fully adjustable rear sight, variable width of the notch, and adjustable sight radius. Wide choice of interchangeable front sights. Anatomical, adjustable walnut grip, available in various sizes. We can make a custom grip or copy of already personalized anatomical grip in our factory. Precise and reliable, side readable pressure gauge for immediate and safe reading of the air pressure in the cylinder. Compensated barrel manufactured entirely by Pardini Armi from special steel and blued individually. The combination of extremely high quality control, both in the construction and assembly phases, and numerous innovative and unique solutions used, give this pistol exceptional consistency, absolute precision and excellent stability during the execution of the shot. K12 is also available in Junior version (K12J) which is 35 mm shorter and 90 g lighter.