Game Face Vexor Eye Paintball Gun (Silver) LCD panel illustrates shot counter, and safety and programmable semi firing mode Anti-Chop-Eye sensor system with break beam lets the marker know when a paintball is in the breech Break beam is more reliable and consistent than reflective sensors, as there are no issues with low light or certain paint colors Twist-lock feeder port lets you clamp on your feeder of choice This item is not for sale in some specific zip codes