The Walther P99 RAM (Real Action Marker) Magazine has a 9-shot capacity and holds either .43 caliber paintballs or .43 caliber rubberballs. Additional ammo magazines are handy for training or the ultimate in paintball reality. Have a couple of extras in your ammo belt for quick re-loading action. The perfect addition to your P99 paintball pistol. Don’t get caught with an empty clip. One Per Package.