I have photos of Dutch soldiers in Lebanon with basic pouches that were modified to hang lower on the belt, but not so low that the entire pouch hangs below the belt, it might depend on the individual or unit that modified them or had them modified though.
They used them for rifle grenades IIRC, possibly teargas or something.
I don't know if any of them had a frame inside the pouches, but it would make sens to protect such things carried in lowhanging pouches.
The KLu one could be from either the KLu or KL. As KL didn't get magpouches issued, they sometimes fell back on svavenging whatever they could use. Either modifying existing stuff, or trading with others who actually did have pouches, like KM or KLu.
I have modified KM FAL pouches, a green blancoed KLu UZI pouch, and FAL and UZI pouches that were theater made in Lebanon.
It's possible the KLu basic pouch with the leather loop was modified for drivers, like with the British MT pouches.