Maple Leaf GHK M4 Hop Unit

Maple Leaf GHK M4 Hop Unit An upgraded CNC hop unit for the GHK M4 gas blowback rifle. This comes with a Maple Leaf 70-degree hot shot hop rubber to accept standard GBB type barrels. Features: CNC aluminium Dual Mode adjustment Maple Leaf Hot Shot Hop-up Rubber 70 for GHK M4 / VFC M4 GBB Not for VFC M4 Variable Hop-Up System