I definitely agree with the Chinese platform a case laying with the letter ends. You might even try a old cetme, or HK G3, HK 91, I can recommend a good place to pick all of them up pretty cheap all have to look for the link, but I own a HK G3 and cetme I just got through doing a bunch of custom work on them, upgrades, if you will!. But I also thought I had very, very heavy duty key rings. I searched high and low, and paid about three dollars a piece for and they look identical to what you have a single nice and sturdy, an almost perfect first, but after some pulling of weight about a month one of them started to stretch apart!. So keep checking it often. It starts to come apart right at this beginning of the separations or openings to slip your key through. I hope it works!.Hi Dawgstar;
To kill the rattle, I may switch out to a Chinese pattern AK sling with its leather end pieces.
All the best,