@trick
Would you mind checking a few other GGTS to MKB compatibility options? Can the bottom cap be switched out? Bottom Tube? Telescoping tube? Sorry to ask but The Ghost Modder has some nice brass pieces that I am looking at and you are the only poster here that has both.
Sorry, been a bit busy and haven't been popping in much except late at night when people start falling asleep and leaving me alone. Just a sec while I unscrew some stuff...
Bottom cap: YES (which I'm happy about, because I'm not a fan of the gold plating)
Bottom Tube & Telescope: NO (Surprised me after the bottom cap threads matched that inner-facing ones wouldn't)