TNT APS-X Hop Up System Inner Barrel Retrofit Kit for GHK M ( 265mm ) Bolt - Glow in dark after

- Glow in dark after exposed to light

It is manufactured by WE-Tech and officially licensed through Cybergun

For Comtac I and II Headset and OPS CORE style helmet rail

- Turbo Valve Polar Jet

let dry and reapply

TNT APS-X Hop Up System Inner Barrel Retrofit Kit for GHK M ( 265mm ) Bolt - Glow in dark afterTHIS NEW amazing system was especially developed to replace and upgrade the entire GHK M4 hop up structure. with the ongoing demand for quality upgrade parts for GHK M4, TNT AIRSOFT STUDIOS has developed this kit which includes all necessary parts including a gbb hop up bucking and cnc hop up chamber. TNT APS X Hop Up System Inner Barrel Retrofit Kit for GHK M ( 265mm )