Hammerhead Classic Barrel Fin Sizer Pistol and innovative design

and innovative design

The outside diameter of this barrel is 7/8-inch

the stock guide may be too tight

- Rapid donning/discarding for emergency situations

Hammerhead Classic Barrel Fin Sizer Pistol and innovative designHammerhead 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