Crosman Undead Apocalypse Zombie Airsoft Pistol, 0.24 cal -- PY-2954 Semiautomatic CO2-powered Full metal inner barrel Tactical rail Black & green color Functional safety Up to 250 shots per 12-gram CO2 cartridge 15-rd removable mag Grip cover slides back to load unload CO2 cartridge No blowback or Hop-Up We chronoed with .12g BBs (400 fps) & .20g BBs (340 fps) Best accuracy with .20g BBs Model Discription Crosman Undead Apocalypse Zombie Tactical CO2 Airsoft Pistol Caliber 0.24 Velocity 400.00