Looks like the Army is rolling Safariland deep on new holsters
An active retention holster that is a lot more complicated to work than the old leather flap holsters and the Bianchi UM84s of the Beretta-era, the Army has been flirting with the 7TS for a minute, and issue it with the M9 currently for MP use. On the bright side, your gun is a whole lot less likely to fall out in one of these, although there is a -distinct- learning curve in getting it dialed in.
In other news, Uncle is also ordering smaller quantities of IWB light-bearing holster from a Florida company that I am talking to for more info. It seems they are for the more compact M18 version of the MHS and the first users are at Bragg. Watch this space.