Try the
4.0 SEALS Special Operations Holster. It's made by Eagle, ambi, you can attach a pistol mag pouch onto it and a TM DE will fit like it was made for it. The best part is that if you ever switch sidearms, all you need to do is run some thread through the holster in front of the trigger guard, and it'll fit like a custom holster. I've owned two and ran a TM DE as my primary for a good year or so.
SEALS also has great service.