Yep ...
I run a modified SERPA for my G29 on a Tactical Tailor MAV rig (2-pc unit, w/ the X-harness).

Another view: this is my Delta in a SERPA holster that's attached on a different rig, more of a vest unit.

I find that, for me, the holster-on-chest rig works better than a belt/thigh set-up. The holster's slight cant gives me an easy draw on the pistol.
The only time I run a holster-on-the-belt set-up is when doing training w/ no chest rig, where you only need a mag or two is for basic drills. Don't need the whole chest unit and its 6-8 mag pouches just for that ... Don't have a pic, but the MOLLE belt I use is the Blackwater "battle belt" type.