5KU CNC Aluminum Lightweight Blowback Unit For Action Army AAP 01 GBB Pistol Airsoft Guns (Blue)

5KU CNC Aluminum Lightweight Blowback Unit For Action Army AAP 01 GBB Pistol Airsoft Guns (Blue) CNC Aluminum Construction Blow Back Unit BBU Design For Upgrade the Original Parts More Durable Allow for your Blow Back much faster Cycling Suitable For Action Army AAP-01 Series Gas Blow Back GBB Pistol Airsoft Guns