TNT APS-X Hop Up System Inner Barrel Retrofit Kit for GHK M ( 455mm )
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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.
TNT APS-X Hop Up System Inner Barrel Retrofit Kit for GHK M ( 455mm )
- Vendor T-N.T. STUDIO ( TNT )
- SKU TNT-RK-GHK-M-455
Disclaimer: Upgrading airsoft guns require necessary skill & technique, manual modification is necessary, consult expertise if needed.
