Tippmann's new Straightline barrel manufactured by Hammerhead is a gun-drilled barrel that incorporates spiral rifling to enhance ball rotation for improved ball flight and unmatched accuracy. It includes three seamless connection sizers (.688, .686 and .683), which can be used to match the dimensions of a paintball to barrel radius for optimal air efficiency. It also features a removable, military-style muzzle break with reverse porting to enhance performance and provide an authentic look.