Reddit reviews Empire Paintball 3 Pod Paintball Pouch, Black

Here is a cheap paintball pod pouch that I use for magazine storage. It holds two 18-rnds per pocket, four total. It just has simple belt loops, and it comes with its own belt with a plastic buckle. Simple, but it works well enough for me. The pouches are a little tight, you might have to practice reloading quickly with them, because if you're not careful they can get snagged.

Here's a 3-pocket variant, I don't have this one but I assume it would hold 6 mags just fine