The first holster is a Safariland 6377 and is probably too bulky for warmer months carrying but will be fine in the winter since I'm on a motorcycle year round. The other holster is a WRB IWB. I won't be carrying all the magazines, just one extra. For a belt I use 2" tubular webbing used for rock climbing. It doesn't stretch, slide or deform when worn excesively, like leather does. And it's a lot stronger, about 8,000 pounds worth. Best yet, it's cheap... $0.79 per foot.
Does anyone else carry a Px4? What rig do you use? I plan on ordering another Safariland in the next few days, a left handed version, since I walk with a cane on my right side all the time and I can shoot with either hand.