M&P 40 15rd mag issue

[dpeets]

I bought 2 m&p 15 rd mags a while ago and finally got around to using th em today and when loading around the 11-12th and up round i noticed on both mags that one round inside is loose and freely slides back and forth. Anyone have any issues like this?

 

[Mark40]

Yes, I have 1 that I use in my 40c. I asked around and apparently, most if not all do this.

 

[PirateJim]

Mine do that as well. Seems odd, but doesn't seem to have any effect on the mags function or reliability.

 

[Bob O]

Two of my 3 mags rattle when fully loaded. Doesn't make sense to me and I don't know the source of the rattle. Both mags function just fine however.

 

[jstanfield103]

Mine too. Noise but no problems

 

[dpeets]

I found on one of the mags its round # 6 that i can see sliding back and forth

 

[MSG Glenn]

I have 6 15 round mags 2 of which are dedicated for use in my 40C. They all rattle, some more than others. Sometimes a quick rap on the back of the mag & a rap on the bottom will quiet them down. I don't think it's a loose round that's causing it but the spring but whatever it is it doesn't affect the performance as they all work in both the M&P40 & 40C without a problem.

One time I was almost finished at the range & had a few rounds left over (other than SD) & I loaded the first mag that came to hand, a 15 rounder. I loaded the last 11 rounds & noticed the mag didn't rattle. Hmmm.

Many times I load the mag to capacity & take 3 or 4 rounds out & reload them. No rattle. I use an UpLula loader so it only takes seconds to do.

 

[MSG Glenn]

I have 6 15 round mags 2 of which are dedicated for use in my 40C. They all rattle, some more than others. Sometimes a sharp rap on the back of the mag & a rap on the bottom will quiet them down. I don't think it's a loose round that's causing it but the spring but whatever it is it doesn't affect the performance as they all work in both the M&P40 & 40C without a problem.

One time I was almost finished at the range & had 11 rounds left over & I loaded the first mag that came to hand, a 15 rounder. I loaded the last 11 rounds & noticed the mag didn't rattle. Hmmm.

Many times I load the mag to capacity & take 3 or 4 rounds out & reload them. No rattle. I use an UpLula loader so it only takes seconds to do.

 

[dpeets]

Hmmm. Weird, i tried reliading them several times each but they still rattled, idk guess its normal operation

 

[poru_desu]

Wish i had issues like these ... except im in comifornia!!!

 

[dpeets]

Lmao..... yea im in vegas, definitely dont have that issue

 

[Mr. Satchmo]

All of my magazines have a rattling noise like this when I fill them. I've never had an issue with feeding though.

 

[MattO]

I've never had any rattle but they all make this loud boom noise after I load the magazines and pull that trigger thing. Is that normal?

Matt

 

[PROnSHIELD]

I've never had any rattle but they all make this loud boom noise after I load the magazines and pull that trigger thing. Is that normal?

Matt

Your magazines have a trigger thing?