- Flat type
- CNC process
- Aircraft aluminum with thrust bearing and enhanced O-ring for superior air seal
- For use with Modify Bore-Up Cylinder Sets, may fit other brand bore-up cylinder sets
- Bore-up piston heads are to be used in conjunction with other bore-up parts (cylinder/cylinder head/nozzle) to increase air flow
DO NOT MIX Bore-up components with non-bore-up components.