THIS 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.
T-N.T. APS-X Hop Up System Inner Barrel Retrofit Kit for GHK M ( 265mm )
|SKU / Code.||TNT-RK-GHK-M-265|
|Manufacturer / Brand||T-N.T. STUDIO ( TNT )|
|Major Built Material||Metal|
|Inner Barrel Length Size (mm)||265mm|