Manufacturer: Umarex Model: T4E TPM1 Materials: Metal & Polymer. Weight: 532 grams (1.2 pounds). Barrel: Smooth bore. Power Source: 1x12 gram CO2. Action: Semi-Automatic with blowback action. Ammo Type: .43 Caliber Paintball or Rubber Ball. Ammo Capacity: 8 Rounds. FPS: 290.