I'm confused if you want a duty belt or a battle belt?
I have both from HSGI, the one Danke posted with the cobra buckle at least. Works like a gem and will last FOREVER, or long enough before I quit airsofting. Of course there are cheaper options for people looking for reasonable stuff, not hot and trending stuff, however keep in mind, you pay for what you get.
Keep in mind too there are battle belts like the HSGI suregrip or Tactical Tailor Fight Light Battle Belts which have cut outs in the battle belt itself to allow dropleg platforms to be attached to the duty belt.
At the end of the day, regardless of what belt you wear, your holster rig will way down the belt to the side it is on, unless you wear suspenders or something similar to that, or counterbalance the weight with something else on the other side of the belt. That was a main factor why I converted to everything on my Battle belt and slowly got away from droplegs, plus everyones using Battle belt