Sorry to have confused... the gg rethreader fits to mkb extension tube & will adapt mkb parts to work with the gg bottom tube. That's what i was trying to say.
This turned my gg stealth into a TS & eliminated the teletube.
I've gone frankenmod & don't know what thread to be in anymore.
I just discovered 69 parts share some gg compatibilies also!
The strange thing is I have a gg brass teletube - it doesn't mate with the mkb extension tube. It does fit my rainbow stealth cap, and mkb collector tank assembly. I know they should all be the same, but there is a unique ridge inside the mkb ext tube female side. Even tho the gg teletube won't fit the mkb ext sleave the gg rethreader does - just not to the mkb bottom tube.
I have a brass gg ext tube on the way. That hopefully will work arround for me to have more gg bottom to mkb upper option. At this time i cannot telescope full size ggmkbts.
Maybe you guys can retap bothe female sections of mkb for brass tele's