5KU Aluminum Outer Barrel for Marui Hi-Capa 4.3 GBB Airsoft ( GB-549 )

This 5KU Aluminum Outer Barrel for Marui Hi-Capa 4.3 GBB Airsoft is designed for airsoft use only. It features an 11mm counterclockwise thread for easy attachments. The aluminum alloy construction increases durability and provides an improved look over stock barrels.