The Walther CP99 is a CO2 powered 177 air pistol manufactured by Umarex. It is double action allowing more accurate shots to be made by cocking back the hammer reducing the trigger pull and weight. This air pistol is a licensed copy of the Walther P99 pistol. This model is nickel plated and has plastic grips. Comes with 2 x rotary 8 shot magazines and a hard plastic storage/carry case.