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...

TechT iFIT .679 Bore Insert. This insert will work with all TechT Paintball iFIT adapters and Python Compression Kits.

Sucessful paintball teams and players have been sizing their barrels to match their paint size for a number of years. By obtaining a correct paint to barrel match a player will not only add accuracy but also efficiency. The biggest obstacle with bore...

Sucessful paintball teams and players have been sizing their barrels to match their paint size for a number of years. By obtaining a correct paint to barrel match a player will not only add accuracy but also efficiency. The biggest obstacle with bore...

It doesn't get better than the Freak,GOG's flagship barrel. No other barrel on the market gives you the versatility and performance like the Freak Barrel System. With a simple change of an insert, you can adjust your barrel to accept just about any paint...

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...

TechT iFIT .670 Bore Insert. This insert will work with all TechT Paintball iFIT adapters and Python Compression Kits.

TechT iFIT .688 Bore Insert. This insert will work with all TechT Paintball iFIT adapters and Python Compression Kits.

TechT iFIT Ion (Smart Parts) Barrel Adapter threads to a Hammerhead barrel (no fin) and allows it to thread into an Ion/SP barrel utilizing the iFIT System. Works with all Hammerhead barrel without the Fin. iFit adapter attaches to guns that use the...

The 6 piece TechT Paintball iFIT Insert Kit. Inserts included: .685, .682, .679, .676, .673, .670.  The iFIT also comes with a durable plastic case to protect your inserts. The case is filled with laser cut foam to help protect your inserts from...

Sucessful paintball teams and players have been sizing their barrels to match their paint size for a number of years. By obtaining a correct paint to barrel match a player will not only add accuracy but also efficiency. The biggest obstacle with bore...

TechT iFIT Ion (Smart Parts) Barrel Adapter. Works with all barrels and guns that use the Ion/Impulse thread pattern. Adapter only - Inserts sold separately.

The original Freak insert just got better.  The New XL version offer 8" of bore control for the ultimate in control and efficiency.  The XL Kits includes 8 stainless steel bore sizes. Includes the following:.679 insert.682 insert.684 insert.687...

Looking to start with one barrel but have the option to upgrade in the future? That’s what the Freak Junior was built to do. With a straight back, standard diameter bore insert and straight ported front, the Freak Junior can be upgrade with...

New Sleek Design - Same Great Performance!The world renowned Freak Paintball Barrel System just got better with newer XL Freak System.  The GOG Freak XL Barrel Back works with the longer 8" Freak Inserts providing even better accuracy and efficiency...