Prometheus EG Inner Barrel

This barrel is specifically designed for compact platforms like the Krytac PDW. If your rifle uses a longer barrel, installing this 155mm version will likely result in significant under-voluming, which can negatively impact your FPS and accuracy.

Yes. Because a tight bore barrel has less clearance, it is highly recommended to use high-quality, polished BBs. Lower-grade ammunition is more likely to jam or cause inconsistencies in a 6.03mm barrel.

The widened window allows for a larger contact patch with your hop-up bucking. This typically results in more consistent backspin and better range, provided your bucking is compatible with the wider opening.

Stainless steel is generally more durable and resistant to bending than brass. It holds up better over time and is less prone to oxidation, making it a reliable choice for long-term performance.

In most cases, this is a drop-in replacement for compatible Krytac AEGs. However, always ensure your hop-up bucking is properly seated and aligned with the window to prevent air leaks or feeding issues.