If you want cheap and simple, an old ALICE triple mag pouch on a standard pistol or riggers belt will work just fine. You can also toss one or two on an ALICE belt for quick on/off. Pouches should be $5 or less at your local surplus store, and belts for under $20.
If you want to start looking at packing more gear on your beltline, though, I would go wiyth a padded MOLLE belt. More modular, plenty of room for mags, handgun, medical, and a water bottle, and quality ones will be quite comfortable.
Never argue with an idiot. They will drag you down to their level and beat you with experience.