This is the Junior version of the K12. 
 
Introduced in 2012, single shot pistol 4.5mm (.177) caliber compressed air. Detachable air cylinder up to 250 bars. Precise and reliable pressure gauge for immediate and completely safe reading of the air pressure in the cylinder. Innovative shot recoil elimination system, located in the bolt (PARDINI patented). New two stage trigger mechanism, completely adjustable, with easyily accessible switch for dry fire.
 
Fully adjustable rear sight with adjustable width of the notch, and adjustable sight radius.
 
Wide choice of interchangeable front sights. Anatomical walnut grip, available in XS, S, M, and L for right hand and M and L for let hand shooters. Option of factory custom grips.
 
Compensated barrel manufactured entirely by Pardini in special steel and blued individually. The combination of extremely high quality control, both in the construction and assembly phases, numerous exclusive solutions used give this pistol exceptional consistency, absolute precision and excellent stability during the execution of the shot.
 
The pistol comes with its carrying case, optional spare cylinder included, fill and release adapters, tool kit, and information booklet.