Guarder Air Nozzle for SG550 / SG551 / SG552 AEG

Guarder Air Nozzle for SG550 / SG551 / SG552 AEG Essential part for upgrading your Airsoft AEG Tighter sealed air nozzle ensures more barrel exit muzzle velocity This Oil Lubricated Air Seal Nozzle increase the air tightness of the cylinder Direct replace of original air nozzle of Tokyo Marui Airsoft Electric Gun Suitable For SG550 / SG551 / SG552 AEG As always, upgrading AEG require necessary skill & technique to dissemble the gearbox, consult expertise if needed