Airsoft Atlanta got in stock the CO2 version of the fully licensed HK USP Blowback Airsoft Pistol... "The HK USP Gas Gun CO2 Full Blowback Black airsoft pistol from Elite Force / HK. This is the high end version of the HK USP that's a full blowback, metal slide, parts, and very robust. This is the best airsoft USP we've ever handled. Full blowback action unlike the other less expensive HK USP Co2 model. All black and fits in all USP type holsters. Fully licensed Heckler & Koch model. An impressive Co2 pistol overall."