Vaultac Stainless Steel 6.02mm Inner Barrel for FN Herstal FNX-45 Gas Blowback Pistols

Stainless Steel Wide Window Barrel for VFC FNX Gas Blowback Airsoft Pistols Specifications: 6.02mm Tightbore 123mm Long Wide cut hop up window allows room for advanced hop up buckings Increases FPS and accuracy Stainless Steel Compatible with FNX-45 Gas Blowback pistol by VFC/Cybergun