Mil-Tac pen conversion?

[FortyTwoBlades]

I know Brigade Quartermasters used to sell a conversion kit for the Mil-Tac TD-1 Defense Pen that would allow it to use a Fisher insert...however I can't find it on their page anymore! Would love to know if anyone could tell me where to find one or, even better, fabricate one of my own. I figure there must be a way! Anyone have pics of what the converter piece looked like?

 

[mack_t_knife]

Sorry, I couldn't help myself.

Maybe this? http://www.ambientweather.com/momiltdp1-ruk.html <- Replacement cartridge

 

[FortyTwoBlades]

It's a replacement write-in-the-rain type job, but that's a proprietary refill, not a standard Fisher one. I want to be able to use a standard Fisher insert like the BQ kit could do.

 

[FortyTwoBlades]

No one then? Ouch. Maybe I'm just stuck using rollerballs.