T-N.T. APS-X HOP-UP System for GHK M4 series 370mm (14.5")

  • Sale
  • Regular price $145.00
  • Will be in stock after


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.

  • GHK-M4-GBB HOP-UP chamber x1 + APS-X 370mm inner barrel
    (CNC aluminum body+anodized Red+T-N.T. lettering)
  • CNC aluminum HOP-UP adjust bar x1、PIN x1
  • elasticity pressure block x1
  • jimi screw x2
  • CNC aluminum adjustment knob x1
  • CNC aluminum adjustment knob x1
  • T-N.T. Located Directional Rubber for GHK-M4-GBB x1
  • T-N.T. Precision Aircushion Directional inner barrel x1