Backs / Inserts / Bore Kits

Hammerhead Fins (Sizers) are designed to match the ball size to the barrel. The type of ball, weather and manufacturer’s tolerances can all have an affect on a paintball size. To optimize your barrel performance it makes sense to have the right...

Hammerhead Fins (Sizers) are designed to match the ball size to the barrel. The type of ball, weather and manufacturer’s tolerances can all have an affect on a paintball size. To optimize your barrel performance it makes sense to have the right...

Hammerhead Fins (Sizers) are designed to match the ball size to the barrel. The type of ball, weather and manufacturer’s tolerances can all have an affect on a paintball size. To optimize your barrel performance it makes sense to have the right...

Hammerhead Fins (Sizers) are designed to match the ball size to the barrel. The type of ball, weather and manufacturer’s tolerances can all have an affect on a paintball size. To optimize your barrel performance it makes sense to have the right...

Hammerhead Fins (Sizers) are designed to match the ball size to the barrel. The type of ball, weather and manufacturer’s tolerances can all have an affect on a paintball size. To optimize your barrel performance it makes sense to have the right...

Hammerhead Fins (Sizers) are designed to match the ball size to the barrel. The type of ball, weather and manufacturer’s tolerances can all have an affect on a paintball size. To optimize your barrel performance it makes sense to have the right...

Hammerhead Fins (Sizers) are designed to match the ball size to the barrel. The type of ball, weather and manufacturer’s tolerances can all have an affect on a paintball size. To optimize your barrel performance it makes sense to have the right...

Hammerhead Fins (Sizers) are designed to match the ball size to the barrel. The type of ball, weather and manufacturer’s tolerances can all have an affect on a paintball size. To optimize your barrel performance it makes sense to have the right...

Hammerhead Fins (Sizers) are designed to match the ball size to the barrel. The type of ball, weather and manufacturer’s tolerances can all have an affect on a paintball size. To optimize your barrel performance it makes sense to have the right...

Hammerhead Fins (Sizers) are designed to match the ball size to the barrel. The type of ball, weather and manufacturer’s tolerances can all have an affect on a paintball size. To optimize your barrel performance it makes sense to have the right...

Barrel Sizer Sleeve for the Goblin Solo or Deuce Micr-Launcher. Size: .678