Nine Ball Damper Cylinder Head X-Shock for Tokyo Marui MP7A1

Nine Ball Damper Cylinder Head X-Shock for Tokyo Marui MP7A1 Built with X-Shock absorb material, make it more durable and quiet Suitable For Tokyo Marui MP7A1 AEG Series Airsoft Rifle Genuine Products by LAYLAX (JAPAN) As always, upgrading AEG require necessary skill & technique, consult expertise if needed