Threading a 3-Slot Quick-Release Belt Buckle
Starting from the front of the metal buckle, thread the left waist strap through the larger end slot of the buckle. Position the buckle approximately 45 cm (18 inches) of webbing length from the plate left waist slot. Then thread the webbing from the back through the centre slot and through the front of the inner most slot. Then thread the webbing through the back of the larger end slot so there are two thicknesses of webbing through one slot and pull the weave tight.