Made this sling using strips of leather cut from a work glove and metal pieces of helmet buckles commonly used with elastic WW2 helmet straps. I realize they aren't exactly like the real 1:1 two pronged hooks used on WW2 slings, but much better than the elastic or web slings that come with the weapons.
I did use a Dremel to make a sharp point on the male buckle ends so they would hook onto the sling. I made the holes with a hand punch tool.
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