Inner Barrel Prometheus EG 6.03 Next Gen HK416D 275.4 mm

This Prometheus EG Next Gen HK416D inner barrel is meant for use as a replacement of the original inner barrel. It offers a significantly greater accuracy thanks to an optimal air seal and mostly because the fact the hop-up effect is greatly enhanced by a high quality inner barrel. Of course, to get the most out of your inner barrel it’s recommended to use only high quality BB’s.

Because the Prometheus EG Next Gen HK416D inner barrel is made of stainless steel it´s very ridged and difficult to bend, making it less sensitive to some rough use. There´s also the fact stainless steel has a smaller thermal expansion than brass and aluminium where most inner barrels are made of. When the barrel gets warmer (when lots of BB´s are fired), there’s less negative effect to the accuracy noticeable.

Precision engineering is another important factor in the high accuracy and very good all-round performance of this inner barrel. The inner diameter is 6.03 mm with a tolerance of just +/- 0.01 mm. The outer diameter is 8.5 mm and, of course, the finishing is done on a high level. To prevent instability at the end of the inner barrel by a sudden drop in pressure, the end flares a bit for a smooth and evenly drop in pressure.