I agree with Fast Eddie. I have used inferior 1911 mags but since switching to Wilson D's all my 1911's function flawlessly. I'm not sure of the value of making a double-stack gun shoot single stack mags but, in my experience, the mag is not the issue.
47D's are the best thing going, but I still find issue with the followers and feed lips. I would prefer a singlestack, don't get me wrong, but one of the biggest weak links of the 1911 is the magazine. If they come out with a single stack, I would hope they would just make their own mag.
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