Prometheus G&G ARP9 6.03mm EG 128mm Barrel

Prometheus G&G ARP9 6.03mm EG 128mm AEG Barrel. Specifically made to fit the G&G ARP9 AEG gun, it's a perfect fit and size.  Customize your gun to make it the ultimate CQB airsoft gun.  The EG series is a 6.03mm inner barrel diameter.  May increase your FPS and accuracy after installation.  One of the most popular and best made barrels for airsoft.  Made in Japan.