GHK M4A1 CNC Hop-Up Set

Maple Leaf Hop-Up for GHK M4

- With Hot Shot hop rubber 70* for GHK GBB Hop chamber series

- Dual adjustable system, user can adjust the hop from the original outter barrel
Or adjust the fix screw from loading chamber with M1.5 allen key (just like WE / VFC GBB series)

- The hop chamber also fits with some VFC M4/AR15 GBB series

- With GHK GBB Hop chamber tensioner

You will use Maple Leaf Crazy Jet Barrels with this hop unit.

*Barrel not included, image for illustration only.