The Quick Release Waist Belt and Assault Strap from High Ground is a pretty slick idea. High Ground designed a way to turn the hip belt from their line of packs into a modular battle belt. This all works because of the Assault Strap which clips into the belt to fill the void left by the pack with usable PALS webbing space.
This design also comes with a very welcome side effect – the belt becomes completely modular. You can purchase as many of the Assault Straps as you like so that they can be configured with different load outs. You just remove one Assault Strap and install another as your mission dictates.