Tippmann 98 Custom Platinum Series Flatline BarrelThe New Flatline Platinum Series Barrel features quick thread design that easily attaches like any other barrel. The Flatline Barrel System is the first production back spin barrel ever produced. The principle behind the system is Tippmann\'s newly designed slightly curved barrel, which applies centrifugal force to the ball, creating backspin. Not only does this system offer increased accuracy and distance but also offers flat trajectory for thick