The MadBull Valve Tool is a specialized tool designed to remove or tighten flow valves, or gas release valves, in most common Gas Blowback magazines. These fit GBB valves in both pistol magazines and rifle mags.
The tool has a hole designed to add a handle for extra torque. It's very simple to add an allen key and an o-ring for an easy custom handle.
MadBull Valve Tool Features:
-Fits almost all GBB Magazines
-Compatible with WE, WA, KWA, TM, HFC, KJW,
-Stainless Steel Construction