About Paintball
Airgun Designs How A Paintball Marker Works

How A Paintball Marker Works

All paintball markers use air pressure from an air tank or 12-gram cartridges to fire a paintball. The velocity of the paintball leaving the barrel is usually 250 to 300 feet per second (fps)

300 fps is the maximum allowed at tournaments while 290 fps is the maximum on most playing fields. Air tanks come in different sizes. The bigger the tank, the longer you can play before requiring a refill. Sizes begin at 4 oz. and go up to 20 oz.

  1. FEEDER
     Paintballs drop one at a time from the refillable bulk feeder into the paintball marker
  2. CO2 TANK
     Air is pressurized at 750 to 1000 psi. Air leaves the tank through a valve into an air line
  3. AIR LINE
     Air travels up the line and into the chamber
  4. TRIGGER
     Pulling the trigger activates the hammer. The hammer slides forward, pulling the bolt over the exhaust valve while pushing the exhaust valve forward to the chamber. Air shoots out of the chamber, through the exhaust valve and through the bolt.
  5. BARREL
     The released air leaves the bolt, forcing the paintball out of the barrel.
Research by Mark Nowlin/San Diego Union-Tribune
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