Custom tuned Valve Shaft with synthetic Cup Seal. Tapered design provides higher velocity and, increased gas flow for more efficient performance. Requires less gas to recock. Works with CO2 or Compressed Air. Fits most Spyder, Kingman & Java markers including Classic, Sonix, Victor, TL, TL+, eSpirit, Rodeo, 2000, Aggressor, Aggressor XT and Spyder-compatible markers.

Ebay Note: This CANNOT be used on a real firearm