Prometheus Cylinder

The Type E designation indicates that this cylinder is ported specifically for shorter inner barrels. The porting location allows the piston to travel a shorter distance before air compression begins, which balances the air volume to match the needs of a shorter barrel setup.

This cylinder is designed to be compatible with most standard AEG gearboxes. However, because airsoft builds can vary, you should confirm that your current setup uses a standard-sized cylinder before purchasing.

Stainless steel offers superior durability and resistance to wear over time compared to standard aluminum or brass components. The high-polish interior finish also reduces friction significantly, which helps maintain consistent muzzle velocity and reduces stress on your piston head.

While not strictly required, pairing this cylinder with a high-quality piston head is recommended to maximize the benefits of the polished interior. A good seal between the piston head and cylinder is essential for achieving the compression efficiency this part is designed to provide.

It is not recommended. Using a Type E cylinder in a rifle with a long inner barrel will result in 'undervoluming,' where the barrel is longer than the volume of air the cylinder can provide. This will lead to inconsistent performance and potentially lower muzzle velocity.