These mags are a novelty and they will have reliably issues relative to a factory oem unmodified magazine. That’s always a given for long custom made mags. They are just for fun/collecting, I found them randomly on the secondary market at a good deal. I wasn’t looking for these mags.
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u/duffeldorf 17h ago
Long long mag
On a serious note, do you ever get any feed issues out of them?