Tippmann 98 Hammerhead Fin Bore Barrel Sizer - 0.690 Paintball Vests & Accessories Repeater Valves are installed by

Repeater Valves are installed by qualified technicians and meet or exceed all industry standards

premium durability and versatile functionality

Magazine Release

Quiet OperationThe Hush Bolt was designed to have a less abrupt "pop" or "crack" that has traditionally been associated with Ego Markers

Super low response curve 0-50 psi from full to empty

Tippmann 98 Hammerhead Fin Bore Barrel Sizer - 0.690 Paintball Vests & Accessories Repeater Valves are installed byHammerhead Fins (Sizers) are designed to match the ball size to the barrel. The type of ball, weather and manufacturers tolerances can all have an affect on a paintball size. To optimize your barrel performance it makes sense to have the right sizer for the ball used that day. HammerHead Fins are 2 in length which is an optimal length based on the amount of air pressure that occurs during the first two inches of a ball being shot out of a paintball