Prometheus EG Barrel

The wider window provides significantly more surface area for the hop-up bucking to contact the BB. This design is specifically engineered to accommodate advanced tuning setups, such as R-HOP, allowing for better backspin consistency and improved range.

This barrel is designed for compatibility with Tokyo Marui AEG platforms and most standard electric airsoft rifles. Before purchasing, verify that your current inner barrel length matches the 300mm specification to ensure proper fitment and cylinder volume matching.

A 6.03mm bore strikes an ideal balance between air efficiency and reliability. While tighter barrels can offer slightly higher FPS, they are more prone to jamming if debris enters the system; the 6.03mm diameter provides excellent shot grouping while remaining forgiving enough for consistent field use.

No, this barrel does not require special coatings. Because it is crafted from high-strength stainless steel, it is naturally durable and resistant to corrosion, making it a low-maintenance upgrade that holds up well over time.

If you are comfortable disassembling your airsoft rifle's upper receiver and hop-up unit, you can install this barrel yourself. However, if you are unfamiliar with internal airsoft mechanics, we recommend professional installation to ensure the barrel is properly aligned and the hop-up bucking is seated correctly.