The original Freak® system quickly grew into the most widely used and highly respected interchangeable bore barrel ever made. Through years of tournament proven performance it has been the benchmark of consistency, accuracy and flexibility. The new Freak® XL builds on that legacy, combining user feedback with extensive research to deliver the next evolutionary step in the Freak® system with a longer control bore. In a controlled test environment, paintballs fired through the Freak® XL exhibited an average velocity increase of 6 feet per second compared to those fired with the same dwell timing and pressure through an original Freak® with the same bore diameter and porting. This efficiency improvement allows the same velocity to be reached with a lower pressure burst of air, resulting in reduced recoil, reduced sound signature and reduced air impact on the paintball - simply by moving up to the Freak® XL system. Barrel Thread: This barrel back has a Ion Thread.