M&P 9 Magazines

[SgtJT27]

With the scarcity of M&P 9 magazines, I found a way to improvise.
Not sure if this was covered here before; I'm not in anyway claiming I started or first to come up with the idea. But anyways, for the fellow Calgunners that haven't, here goes. This might be boring, so if you already know then disregard.

I acquired a bunch of M&P 40 magazines before the craziness started for the purpose of using it on my M&P40 Pro in USPSA, then i bought an M&P9 Pro which only came with 2 magazines. I usually have at least 5 mags minimum per gun. Well good luck finding M&P 9 mags unless you want to pay $50-$80 each in gunbroker.

I have read here before, from M&P40 owners that you can use the 40 mags on 9 with their barrel conversion. So I tried it but, didnt really worked out well, the 40 feed lips are still pretty wide that the 9 cartridge sticks nose up and sometimes pop out.

Since I have plenty of the 40 mags, I bent the feed lips slowly with a plastic mallet until I got the same measurement as the 9mm feed lips width opening, loaded it and compared the profile of that of the actual 9mm magazine feed lips. I went to the range and test fired about 100 rds and not a single hiccup.

I left the 40 followers in their for a while, until I got some 9mm followers from Brownells or Speed Shooter Specialties.

So for you guys that are looking for the 9mm magazines, might want to consider looking for the 40 mags as well. I know both are now hard to find, but at least now you have an alternative.

just my 02. cents

[chrisf]

Hmm. I put my 9mm in .40 sigma mags and it worked just fine in my m&p 9c. Extra capacity was nice as well

[lilro]

Hmm. I put my 9mm in .40 sigma mags and it worked just fine in my m&p 9c. Extra capacity was nice as well

Sigma mags work in M&Ps? Sweet.

[lavey29]

Pretty interesting info, thanks for sharing. Not sure I would bet my life on mix matching like that but for target shooting no problem. I have been trying to find M&P 9mm mags ever since the panic started with no luck at all. I have a full size M&P on hold with a deposit but not sure I want to go through now due to the lack of available magazines for it. I even wrote to Smith and Wesson via email inquiring and they never even responded.

[SgtJT27]

Hmm. I put my 9mm in .40 sigma mags and it worked just fine in my m&p 9c. Extra capacity was nice as well

Cool, I saw that on other forums also, but was also mentioned that it only worked on the M&P compacts and not the full size.

It'll be nice if someone can confirm on the full size, I don't have a Sigma mag to verify.