I KEY For Gas Pistol

Maple Leaf's incredibly durable, metal adjustment key for Tokyo Marui / WE - G17, 18, 19 Hop Up systems.

Fits under the hop arm and evenly distributes pressure to the bucking. Makes your hop up apply more consistently!

Easy to install, simply drop in and align correctly for best results!

The face that sits on the bucking is concave for best bucking patch contact effect!