Prometheus EG Inner Barrel

A 6.03mm bore is considered a 'tight-bore' barrel, which minimizes the gap between the BB and the barrel wall. This reduction in air leakage increases muzzle velocity and significantly improves shot-to-shot consistency compared to wider stock barrels.

Yes. Unlike softer brass or aluminum, stainless steel is highly rigid and resistant to thermal expansion. This means your barrel won't warp or flex during rapid-fire sessions, ensuring your accuracy remains stable even as the gun heats up.

The flared muzzle allows for a more gradual and uniform pressure drop as the BB exits the barrel. This helps prevent turbulence, which can cause the BB to veer off course, resulting in a straighter and more predictable flight path.

Because of the tight 6.03mm tolerance, you must use high-quality, polished BBs. Lower-grade ammunition often has inconsistencies in size or surface finish, which can easily cause jams or damage in a precision barrel.

While it is specifically designed for the CQB-R and MC51 platforms, compatibility depends on the length of your current inner barrel and the hop-up unit design. Always measure your existing barrel before purchasing to ensure the 285mm length is appropriate for your specific build.