Maple Leaf’s incredibly durable adjustment key for Tokyo Marui / WE – G17, 18, 19 Hop Up systems.
I Key for Diamond Hop Up Packing
For use with “Diamond” hop up packing
Fills the space between packing and pressure lever ( metal plate ) to apply wide and even pressure across packing, thus achieving optimal performance.
Suitable for Tokyo Marui, WE-Tech Airsoft GBB Pistols