VZ58 Stock Adapter bolt

[asvpak47]

Hi there, anyone know what the size and type of tool you need to use to remove the bolt for the VZ58 sporter stock adaptor?

I removed the carbine stock and buffer tube and there is a bolt there holding the adaptor in place. It looks like a hexagon, maybe an oversized allan key?

Any advice would be greatly appreciated.

 

[Unhinged]

Mine can be removed with a 6 millimetre Allan key.