5KU 20" Aluminum M4 Rifle Outer Barrel for Marui M4 MWS GBB (14mm CCW)

5KU 20" Aluminum M4 Rifle Outer Barrel for Marui M4 MWS GBB (14mm CCW) Aluminum Construction 14mm Counter Clockwise CCW Thread Suitable For Tokyo Marui M4 MWS Series Airsoft Gas Blow Back GBB Rifle Airsoft Guns Length: 508mm