Originally Posted by
Evil_Ed
47Ds and other Wilson 45acp 8 round mags (that are NOT the HD+Ps or Vickers mags) are NOTORIOUS for having mag springs go bad, fast. Especially ones that try to shove 8 rounds into a 7 round body (like the 47D).
The days of "The 47D is the standard" ended in like 2006. 47s (regular 7 rounders) last longer, spring-wise.
Seriously - either to go Wilson's site and order some replacement springs, or spring (pardon the pun) for the flat-wire spring upgrade to the 47D and any other Wilson mag you may have that don't have the flat springs in them already - you'll notice it reduces capacity by 1 for the 47D at least...well, sort of; as the spring breaks in you'll find you can stuff an 8th round in there still, but it took a year of hard usage on mine to get it to that point.
I have no real idea if the "regular" ETMs ever fully solved that problem but if they're using the same spring from the 47D in their non-flatwire applications, then I'd guess no, they haven't fixed that problem. I could be wrong, but since you just had a failure to present and feed...not sure that I am.
tl;dr - replace your mag springs ASAP, all of them, in all of your non-flat wire spring Wilson mags. If you're going to use them a bunch, plan on a 6 month replacement policy...or at least be prepared for random failure to feed on things that cycle fast (Commanders, smaller length guns, or guns shooting +P) after a few months of use. It's the nature of the beast with Wilsons, sadly...