Prometheus EG Stainless Steel 6.03mm Inner Barrel (141mm - 550mm) Length:141mm Gearbox: V2 ECS Avalon gearbox

Gearbox: V2 ECS Avalon gearbox w/ quick spring change

-SDIK 4mm- 1/8 QD Fitting Included

75” from tank to ASA

Weight: 210 grams

Gas: Green Gas

Prometheus EG Stainless Steel 6.03mm Inner Barrel (141mm - 550mm) Length:141mm Gearbox: V2 ECS Avalon gearboxPrometheus is a high end brand manufacturer of aftermarket parts with a special focus on enhanced performance. Their inner barrels are well established as being a top tier choice for tight bore inner barrels. With an inner diameter of 6. 03mm, it is a tighter fit on ammo then most stock varieties (which are in the 6. 05+ range mostly) but still not as tight as 02 or 01 barrels making them easier to work with. 6. 03mm is generally considered the sweet