ACTION High Output Valve.
Extreme Output Power upgrade.
High Flow Valve.
Increase the shooting power of each shot.
Suitable for KSC/ KWA M4 Series Airsoft Gas Blow Back GBB Rifle Magazine.
As always, upgrading GBB require necessary skill & technique to dissemble the gun, consult expertise if needed.
Action - High Output Valve for KSC/KWA M4 GBB Magazine - A-VA-18A-VA-18