5KU - 4.3 Inch Aluminum Hollow Outer Barrel for TM Hi-Capas (Colour Options) Colour:Silver windowed housing allows improved airflow

windowed housing allows improved airflow to help cool the motor

featuring a CNC feed tube that will engage with most mid-caps

The porous nature of sintered alloy allows for oil to easily penetrate the surface of the bushings

Threads: 14mm Negative (CCW)

Includes single stack adapter and O ring

5KU - 4.3 Inch Aluminum Hollow Outer Barrel for TM Hi-Capas (Colour Options) Colour:Silver windowed housing allows improved airflowCNC Aluminum construction Anodized finish, lightweight dinging barrel Compatible with Marui Hi Capa 5. 1 GBB pistol or similar spec M11 CW internal thread for silencer adapter Fitting may be needed as the condition of each airsoft gun might be different.