This is a new release from KJ Works which you can get for US$92 at eHobby Asia. It is an MEU replica, and the recommended gas is the HFC134a/HFC22 which can give a crisp and strong blowback action which they claim to be better than any MEU airsoft brand. One thing going for the KP series is the painted front and rear sights to aid you in shooting. It has a rail attachment in the lower frame for accessories and able to take a CO2 magazine which is sold separately.