The Custom Products 2 Piece Barrel takes your marker's accuracy to a new level. Every Custom Products Barrel goes through a 9 step process on the some of the most technologically advanced and precise machinery on the planet. After it leaves the machine, each barrel is hand inspected and hand polished for a finish that is near perfection. A smoother inner bore means less friction on the ball which translates to less barrel breaks and greater gas efficiency.- Aluminum construction - Precision machining and tolerance - Mirror smooth inner bore - Three rows of straight porting for a quieter shot - Barrel Front only - Requires CP Barrel Back