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The 9mm Wilson ACP that I recently reviewed for the M1911.ORG E-zine came with two of the new design ETM magazines. They were noticeably easier to both load, and seat into the pistol with the slide forward, than any other 10 round 9mm mags I’ve ever used, including Wilson’s previous generation of ETM magazines.

I have a Wilson Professional Model (four inch frame and slide) that I’ve had for over 10 years now, which was made back in ‘06. I bought it to shoot IDPA ESP class with, and was never interested in carrying it because of the ambi safety it came with. I would have changed it out immediately, but the frame and all small parts except the hammer are finished in OD green Armor Tuff.

I recently (better late than never, I suppose) decided to update the pistol a bit. I replaced the ambi thumb safety with a single sided one, and added a one piece mag well, both from Wilson, and in OD green. I also got a new pair of stocks to mate up with the mag well.

Now, this is where the new magazines come in. After installing the new parts, I decided that, since the ambi was now a thing of the past, I’d put the pistol into my carry rotation. Remember, I had 10 years of history shooting it, with no functional issues to speak of. Well, just imagine my chagrin when I couldn’t get a full magazine of hollow point ammunition through the gun without failures to feed! Since it was a range gun, I had never tried to shoot it with any hollow point ammo. That was when I remembered how nice and smoothly the new design mags that came with the ACP 1911 functioned. So, i ordered four of them from Wilson, and loaded a couple with hollow point ammunition. I was able to hand cycle all 20 rounds from both mags through the pistol without issue. Things were definitely looking up! So, I took all four mags, along with the Professional Model, some 115 gr FMJ, and two different kinds of hollow point ammo, to the range yesterday. Everything ran through that pistol like grease through a goose! Of course, the ball ammo fed without any problems. I then shot the Federal 115 gr JHP, which has a rounded bullet profile, and Hornady 115 gr JHP, which has more of a truncated cone (TC) bullet profile. TC bullets seem to be more problematic in feeding in some pistols. Both fed flawlessly for me now, using the new magazines.

So, if anyone with a 9mm 1911 has been experiencing feeding issues; I recommend that you give these new Wilson ETM magazines a try. They certainly provided a drastic improvement in feeding for me!

The 9mm 1911 magazines that I’d previously used were the original Wilson 10 round ETM mags (10 years old now), plus several nine round mags from various manufacturers.
 

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Great info Rick! :thumsup :pistols
 

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Discussion Starter #5
Thanks Rick, do they have the In God’s caliber?

My carry mags are Tripps.
I know that they’ve been making .45 acp ETM mags for several years now. The problem is with 9mm 1911 mags, which have a propensity to nose dive when feeding from a fully loaded mag, hitting the feed ramp a bit too low, even on pistols (which is most these days) with ramped barrels.

Have you taken them apart yet? I believe the new ETMs come with the flat wire spring in them whereas the older ones did not.
Sorry, I’ve had no reason to take one apart. I have mags that are 15 years old that have never been apart and are still functioning flawlessly.

Anyway, it’s not just a different spring. The follower is quite different in both geometry and material (it’s stainless steel), and the cartridges in the mag are positioned to feed at a steeper upward angle than other 9mm mags. The front edge of the mag body (tube) is also different than the old ones.
 
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