FCC - Completed 6.03mm Inner Barrel with Gen2 Hopup System 16"/416mm

FCC Completed Inner Barrel Hopup System 416mm (16")
Designed for replace / upgrade your own factory inner barrel & Hopup, or you wanna build another upper or rifle must item!

• FCC 6.03mm precision inner barrel equipped
• FCC Gen2 Advanced Complete Hopup System equipped
• Fully assembled by FCC team, Ready to Use!!!
• Compatible with FCC TW, Celcius CTW & Systema PTW system.