CNC Aluminum Double O-Ring Ball Bearing AEG Piston Head torch 1 x WM MWS GBBR

1 x WM MWS GBBR mag

5mm size inner barrel

One-piece cylinder

SHS Aluminium 14 Steel Half Teeth Piston for All AEG Red

0 (Buna 70) - Outside Sleeve

CNC Aluminum Double O-Ring Ball Bearing AEG Piston Head torch 1 x WM MWS GBBRPrecision CNC machined aluminum construction Double O rings helps to prevent piston head from scraping the inside of your cylinder Improved durability Ported cylinder head Smooth steel ball bearings Product Description: The Maxx Model Double O Ring Aluminum Piston Head and bearing. Fits airsoft M4 AEGs and ALL other gearbox version (all versions) guns. Double rubber o ring for tighter seal and compression. An excellent high quality piston head for