12" Ion Barrel - .690 Bore - Single Spiral Vent - Black

Fits Base NXT shockers - Dynasty Shockers - Epiphany - Impulse - Ion - Nerve - PIMP - shockers - SP-8 - SP-1 - Strange NXT - Ion -Standard venting is 2 spirals 3 inches long. Dual venting is 4 spirals 3 inches long. What does venting do? The gas travels faster than the ball, thus knocking it off course when the ball exits the tip. Venting dissipates that blast behind the ball creating a less turbulent cylinder of gas.