![6.03 GBB EG Precision Barrel - 370 mm 6.03 GBB EG Precision Barrel - 370 mm](https://air.viruisis.lt/66666-large_default/603-gbb-eg-precision-barrel-370-mm.jpg)
![6.03 GBB EG Precision Barrel - 370 mm 6.03 GBB EG Precision Barrel - 370 mm](https://air.viruisis.lt/66666-large_default/603-gbb-eg-precision-barrel-370-mm.jpg)
6.03 GBB EG Precision Barrel - 370 mm
GBB EG Barrel series precision barrels by Prometheus are compatible with a majority of GBB replicas.
Barrels from this series are considered to be one of the best precision barrels on the market. This is due to the barrels having a low deviation regarding caliber differences on the inside of the barrel and undergoing a rigorous quality assurance. Barrels are made in Japan and are manufactured in a very precise way from stainless steel.
EG Prometheus barrels are also much more even, stable and definitely straighter on the inside than a majority of other products available on the market.
We recommend using precision barrels only with precision BBs for a peak performance.
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