I ended up using the standard Iwata QDs and filled the knurling on the female end with filler. It had ok results for what this outfit is. "semi accurate".
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the real issue is what keeps them attached to the gauntlet. Mine aren't 100% accurate so I couldn't fit a dowel of the proper diameter inside. Took me melting the parts into the 3d print resin to do it... hense the extra crispy/weathered look, which I consider more "realistic" anyway, under the character's circumstances.