The Mechtech CCUs look interesting, but I see they don't make one for the G30 (or the G29). I have an email into Mechtech asking why specifically, but I thought maybe some GTers might have some insight. I realize a G30 frame is shorter than G21 and it wouldn't click into place, but it seems you could use a "filler" of some sort to adapt it. Also, Mechtech makes their units for all the compact Glocks, and the G30/29 are roughly the same size. It seems like it should be possible to make a CCU to accommodate them. Certainly the popularity and numbers are there to justify one more model.