I've seen several versions used, but the MoM pics show a two 1" black web straps connecting the two sides.
I took a Dremel and cut off both prongs on one side, and sewed the web straps around the buckle bar. I took a soldering iron and 'punched' holes into the webbing (like a lightsaber, it cauterizes as it burns!) for connection to the belt prongs on the other side.
I hope this helps!