WALTHER PDP COMPACT NBB w/ RDS8 RED DOT SIGHTProduct Details This officially licensed Umarex Walther PDP Compact FS 6mm Airsoft Pistol with RDS8 Red Dot Sight is the first optics ready Airsoft pistol in the Elite Force series. It looks just like the real thing, from the signature Walther ergonomics and grip texturing to the slide serrations. Powered by a single 12 gram CO2 cartridge (not included), it's capable of delivering up to 400 FPS velocity. Included with the Walther PDP Compact is the