CNC Aluminum Ball Bearing Piston Head for Airsoft AEGs (Double O-Ring )

Part: Piston Head
Application: Most Version 2, 3, 6, 7 AEG Gearboxes
Color: Blue
Dimension:19mm×23.3mm
Material: 6063 Aluminum Alloy
Features:
Precision CNC machined aluminum
Smooth anodized finish
Vents expand double o-ring for optimum air seal
Ball bearing mount for smooth operation