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

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