|The best barrel upgrade for your Model 98 Custom! This is the first 'production' back spin barrel ever produced utilizing a Tippmann patented design. Utilizing a curved barrel which applies centrifugal force to the ball (creating a back spin), the Flatline Barrel yields unparalelled distance and accuracy! Factory tests have shown a 140 ft. increase in distance at 280 FPS. While traditional barrels need up to 7-10 ft. of arch to reach a target at 180 ft., the Flatline Barrel requires less than 1 ft.! Utilizing premium paintballs, the Flatline Barrel can provide 6in groupings at 50 ft. (compared to 16in groupings with a stock barrel). At 75 ft. the accurcy increases to 14in groupings vs. 24in with a stock barrel!