Prometheus Cylinder

In the context of Prometheus cylinders, 'Type A' refers to the specific porting configuration. This model is typically designed for full-length barrels, meaning it has no porting or a very specific port location to maximize air volume for longer inner barrels.

This cylinder is designed for standard AEG gearboxes. However, because airsoft compatibility can vary by manufacturer, you should verify that your current setup uses a standard-sized cylinder before purchasing.

Stainless steel is significantly more rigid and resistant to deformation than aluminum or brass. This durability ensures the cylinder maintains its shape under the high stress of upgraded springs, which keeps your air seal consistent and prevents power loss over time.

While not strictly required, it is highly recommended. Pairing a new, precision-engineered cylinder with a fresh piston head ensures the best possible air seal, as older piston head o-rings may have worn down to match the imperfections of your previous cylinder.

Yes, like all internal compression parts, it requires a light application of 100% silicone oil or grease. This keeps the piston head moving smoothly and maintains an airtight seal during the firing cycle.