If you're into HPA you've probably heard of the Super Core by Spectre.
According to him, these are engineered for an output of 250 FPS at 45 psi and beyond. Please refer to Spectre regarding regular maintenance.
Please note, this is only the Super Core and not a full HPA system and Foam Pro Shop does not offer any additional components that may be required. Working with High Pressure Air can be dangerous and Foam Pro Shop is not responsible for any injury or damage caused by the Super Core's use in any way.
Basically, if you don't already know what this is and what to do with it, you probably shouldn't buy it. Spectre needed somebody to step in and justify making a large scale run of these cores and we decided to save them from extinction. We hope you enjoy but we can not provide customer support for a product we don't stock the technology to utilize. No Refunds will be offered on this product, sold as it was shipped to us by Spectre.
Update: This is the last one we have.