Prometheus EG Barrel 509mm for M16A1, M16A2, M16VN, AUG

Prometheus EG Barrel 509mm for M16A1, M16A2, M16VN, AUG For Tokyo Marui M16A1, M16A2, M16VN, AUG Airsoft Gun High grade precision barrel at 6.03mm diameter for extra power and precision shooting Choose this barrel to suit your model For custom upgrade user, you can choose a longer barrel PROMETHEUS EG Barrel by LAYLAX (JAPAN) NOTE: You can always choose a longer Barrel if you have a extended Outer barrel installed