The 4 eye upgrade is the biggest advancement to the paintball marker since the inception of the 2 eye upgrade.

In short, The set of eyes at the top of the breech reads the ball drop rate and tells the bottom set of eyes when the ball will be in place and ready to be fired, rather than waiting for the bottom set of eyes to read a ball in place and then firing. This action speeds up the firing sequence dramtically.

Item # MTBL4CES