The KWA HECKLER & KOCH USP Series of gas pistols are some of our best selling airsoft gas pistols. Using full aluminum metal components mounted to a robust polymer frame. The guns are known for the realistic weight, great gas consumption and reliability. The full size USP features a safety that also functions as a de-cocker. The magazine has a capacity for 25 rounds, and you can keep one in the chamber. Solid, reliable, and fully functioning blow-back airsoft gun. Fully licensed KWA airsoft pistol by H&K.