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