The “Standard” option is for all plate carriers that have molle/PALS webbing on the outside of the front plate carrier panel.
The “JPC 1.0” option includes a wider to accommodate the wider outboard molle slot on JPC 1.0 plate carriers. This plate will also work on the JPC 2.0 with a molle front placard.
The “Velcro” option is for plate carriers that lack an outer layer of molle on the outside of the front panel of the plate carrier. The JPC 2.0 in certain configurations, many swift clip carriers, and Ferro Slickter are a few examples of such plate carriers.