I've never really had a holster fetish - I started shooting with a non-Serpa Blackhawk! paddle holster and I still loan it out on occasion. I moved on to a Safariland ALS holster for IDPA on a whim, then settled in the Safariland 5187/5188 holster. All that stuff worked fine until I got the Beretta... The older Brigadier slide (it is wider than a standard Beretta 92) limits the holster options. Comp-Tac just discontinued theirs leaving Blade-Tech the only real manufacturer of Brig holsters around (which is fine since they make nice gear...). I guess I've been lucky in that regard, as I hear a lot about people who have drawers full of holsters.
So, let's talk about the other end of the equation: production magazine holders... (I avoid Limited/Open pouches, because these are far less constrained - magnets, etc...)
I started off with simple Uncle Mike's double pouches. While these will work, after a while I found myself too cramped by the spacing to reload from them effectively. I started searching for a better system, and, unlike my experience with holsters, I've had to switch things around a fair bit: I jumped from Blade-Tech pouches to Ghost holders to the Safariland ELS system.
Safariland
Unless you're getting into 3-gun, I don't recommend the Safariland ELS system as much anymore - you can see my older review and what I used for the first 5 years of competition.
The ELS system is great for 3-gun, and it does work, but if you find other equipment that you want
mounted, you're SOL - I guess that is my biggest beef with it. (Other than the belt "nubs" that you have to align to the holes on the belt) I moved from the Ghost pouches to the 773 pouches because I couldn't reliably mount the holders on the belt and still leave a configuration for rifle pouches, etc.
Regarding the Safariland 773 and 771 pouches - you still see 'em a lot out there, but I think that there are better holders since the retention screws tend to back out and leave magazines flopping a bit. They are angle adjustable, but that's about it.
Ghost pouches
For the simplest setup, check out ReadyTac's pouches: The design is self-tensioning, which means there are no screws, clips, etc. They aren't adjustable, but for CCW or IDPA, that's ok. Don't bother with the pro-grade stuff - the simple design is easy-on/easy-off and works just fine. Bonus: You won't need a race belt to keep this together...This, can by no means, be a comprehensive list of products; there are just too many makers out there! Don't be afraid to experiment and see what works well, but learn the proper setup:
The biggest issue with magazine carriers is placement - once carriers start to get forward of pant seam, I feel like it becomes more important to begin sweep back the angle - i.e. the top of the first magazine should be behind the bottom of the magazine. I think too many people try to align the pouches vertically, which leads to an uncomfortable wrist angle and improper grip which impedes magazines indexing.
