I currently have my XD(M) 5.25 Comp in .45 ACP in an "Elusive Camo.com" holster, which is the only thing I've found thus far that also accepts the Viridian X5L Gen 2 that I have mounted to my 5.25.
That being said, I got an email from Viridian and they inform me that they have a TacLoc holster on the way for those of us that shoot 5.25's with X5L G2's. Since the TacLoc holsters have the ECR which activates my gun light/laser when its drawn, I'm going to be a happy camper when it finally comes out.
Perhaps other 5.25 shooters out there might email them and tell em to speed the process along a bit?
The X5L is awesome, if you haven't tried one on YOUR 5.25, I suggest giving it a whirl.
Anyway, Viridian and elusivecamo.com (which is actually QUEST) to add to the list.