Big Dragon  Air Seal Nozzle
High durable POM Construction
Essential part for upgrading your Airsoft AEG
Tighter sealed air nozzle ensures more barrel exit muzzle velocity
The interior of it adds a O-ring to enhance the air seal effect to its maximum
Direct replace of original Air-Seal Nozzle
Suitable for MC51/G3 Series Airsoft Electric Gun AEG Rifle

As always, upgrading AEG require necessary skill & technique to dissemble the gearbox, consult expertise if needed