Guarder Steel Outer Barrel w/ 6.02mm Inner Barrel for KWC Mini Uzi GBB SMG

Guarder Steel Outer Barrel w/ 6.02mm Inner Barrel for KWC Mini Uzi GBB SMG Steel Construction Outer Barrel 6.02mm Tight-Bore Inner Barrel Suitable For KWC Mini Uzi Series Gas Blow Back CO2 GBB SMG Rifle Airsoft Guns