THIS ITEM IS NO LONGER AVAILABLE
The TNT APS-X Hop-Up System Kit for GHK M4 replaces and upgrades the entire GHK M4 hop up design.
This kit contains a hop rubber and CNC Hop.
Contents:
GHK-M4-GBB HOP-UP chamber x1 + tnt aps-x 275mm inner barrel
CNC aluminum body+anodized Red+T-N.T. lettering)
CNC aluminum adjustment knob x1 (anodized Silver)
CNC aluminum push down bar x1
elasticity pressure block x1
adjustment knob O ring x1
jimi screw x2T-N.T. Located Directional Rubber for GHK-GBB (Black) x1