Prometheus EG Inner Barrel

This barrel is designed for compatibility with Tokyo Marui, Matrix, G&P, and other standard AEG platforms. However, you must verify that your current inner barrel length matches the 185mm specification to ensure proper fitment and avoid issues with your hop-up unit or outer barrel length.

The 6.03mm tight-bore diameter reduces the air gap between the BB and the barrel wall as the projectile travels. This creates a more consistent air seal and reduces BB vibration, which directly translates to tighter groupings and improved accuracy at distance.

Stainless steel is highly durable and resistant to corrosion, making it lower maintenance than brass alternatives. You should still clean the bore periodically with a lint-free cloth and silicone-free solvent to prevent debris buildup that can degrade accuracy over time.

While the primary goal of this upgrade is accuracy and consistency, the tighter bore can often result in a slight increase in muzzle velocity due to improved air efficiency. The exact change depends on your current compression setup, so it is recommended to chrono your rifle after installation.

Yes, the precision-polished crown at the muzzle end is critical for accuracy. It ensures that the air pressure escapes evenly around the BB as it exits the barrel, preventing the turbulence that can cause the projectile to veer off course.