Z-Parts CNC Steel Barrel Nut for Umarex (VFC) HK416 GBB Rifle Airsoft Guns

Z-Parts CNC Steel Barrel Nut for Umarex (VFC) HK416 GBB Rifle Airsoft Guns CNC Steel Construction Premium Upgrade Airsoft Barrel Nut Suitable For Umarex (VFC) HK416 Series Gas Blow Back GBB Rifle Airsoft Guns