TNT APS-X Hop Up System GBB Retrofit Kit for VFC BCM MCMR / KAC SR16E3 / MK16 VR16 URG-I GBBR ( Front-Guide HOP-UP Unit ) Inner Barrel Length Size (mm):370mm height:auto}#html-body [data-pb-style=HC3D1YW]{border-style:none}#html-body [data-pb-style=D5LFVWS]

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Coating – Black Anodized Finish

the latest rail system "M-LOK" is adopted

- Mas Grey 65/35 Polyester/Cotton Plain Lite Fabric

Echo1 and other G36

TNT APS-X Hop Up System GBB Retrofit Kit for VFC BCM MCMR / KAC SR16E3 / MK16 VR16 URG-I GBBR ( Front-Guide HOP-UP Unit ) Inner Barrel Length Size (mm):370mm height:auto}#html-body [data-pb-style=HC3D1YW]{border-style:none}#html-body [data-pb-style=D5LFVWS]TNT APS X HOP UP System VFC BCM MCMR GBB RETROFIT KIT For: VFC BCM MCMR New Front Guide HOP UP Unit Suitable for: VFC BCM MCMR GBBR VFC VR16 URG I CARBINE GBBR VFC VR16 URG I CQB GBBR VFC KAC SR16E3 CARBINE MOD2 GBBR VFC KAC SR16E3 CQB MOD2 GBBR included: TNT VFC FG type HOP chamber x1 TNT T HOP bucking VFC M4 GBB x1 TNT Precision Double I D Air cushion inner barrel x1