I ran the same set up on duty. Tell your buddy he bought a solid gun that no one makes holsters for. Actually there are a few options, but you have to look real hard. I ran a Safariland 6004 on a drop leg for operations, it ran about 100 bucks. For low profile operations I ran it in a Raven Concealment Systems Phantom holster made for a standard 1911 equipped with a TLR. Stock the holster will not fit properly, but you can force it in. Then take a heat gun and with just a little heat you can recontor the holster to work perfectly. Just be careful not to use too much heat, and use a gloved finger to press the kydex into shape. The good thing is you can't really mess this up. If it the holster ends up being too tight just hit it with heat and it will loosen back up. Unless you melt somthing your gtg.
When i didn't want to run a light and needed some type of retention, I wrapped the gun up iin a single layer of butcher paper, a grocery bag works well too, then shoved it into a Blackhawk CQC and again applied heat to it untill it gave slightly. Once the kydex cooled off I removed the gun, unwrapped the paper, and then it slid into the holster like it was made for it. I hate to have to go through these efforts, but sometimes you have to make your equippment work for you. Good luck Soilder.
Bladetec also makes both dropleg as well as hip holsters for the gun with or without a light.