This Umarex CO2 magazine is compatible with the T4E Walther PDP Compact 4" Paintball Pistols (2292191) has a capacity of 8 rounds and matches the Black color scheme of the Paintball Pistol (Paintball Pistol NOT included CO2 NOT included).With a capacity of 8 rounds these Paintball Pistol magazines help you spend more time firing and less time changing. Keep a spare magazine on hand for your shooting and training with the Umarex T4E Walther PDP Compact Paintball Pistol. This magazine holds a single 12 gram CO2 cartridge. Caliber: .43 (Paintballs or Rubber Balls) Power source: CO2 Capacity: 8 rounds Type: Paintball Pistol Magazine Compatible with: Umarex T4E Walther PDP Compact 4" Paintball Pistols (2292191)