This Custom Products adapter allows the Apex 2 to be mounted to the CP Tactical line of barrels as well as other barrels with tip threading that is similar such as Tiberius, Lapco, and Hammerhead barrels.
Tip threading follows the 7/8-20 thread pattern and the tip itself measures 4″ long.
Watch out for more innovative upgrades like this one from Custom Products in the future.
![Custom Products Tactical Barrel - 3 Inches Long [BT4 Threads] - Dust Black - 0.689 Inch Inner Diameter Custom Products Tactical Barrel - 3 Inches Long [BT4 Threads] - Dust Black - 0.689 Inch Inner Diameter](http://www.paintballtech.org/images/1332-1.jpg)