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getsome
08-26-2011, 05:22 PM
Hello all, last weekend I picked up a new S&W .40 M&P but haven't had a chance to fire it yet....I loaded up both magazines with 15 rounds and whacked the back of both mags to seat the rounds but they rattle around inside the mags and sound like a metal bucket full of nuts and bolts even after the mags are inserted in the gun...If I remove 1 round down to 14 and whack it it will still rattle but not as bad...This is the first double stack pistol I have ever had and will have to toughen up my thumb to keep these things loaded...My single stack 1911 .45 and 4506 .45 don't rattle with a full mag so I wonder I any other guns like Glocks or Sigs do this...It sounds like the rounds are hitting the front and back of the mag when slightly shaken...I like the gun and it fits my hand even though I'm not that crazy about .40 cal I wanted it as a big brother to my PM40 and back when ammo was impossible to find in 9mm .45 .38 .357 .44 I could always find pleanty of .40 probably because the ammo makers produce so much of it for police use so I figured a .40 cal pistol would be a good idea to have for that reason if nothing else...I asked over at the S&W forum and they say its normal to rattle and not to worry about it but what do y'all think?

crazymailman
08-26-2011, 05:28 PM
I've had an M&P 40 for a couple of years now, and the bullets do rattle in the mag. That does bug me, but the quality of the pistol has made up for that annoyance. It is accurate and has been 100% reliable with everything. I like it even better now that it has the Apex carry trigger in it.

MW surveyor
08-26-2011, 05:52 PM
My CZ SP01 Phantom 18 round mags rattle when fully loaded but not too bad. The elcheapo 15 round ProMag does not. CZ says it's normal.

Bawanna
08-26-2011, 06:42 PM
I have about 150 Glock 21SF mags here at work and many of them rattle when full, take one out and it stops completely. Try a different mag full and it doesn't rattle at all. I've taken them apart and compared side by side and I just don't see whats causing it.
It would seem when full the spring is compressed to where something is loose, let the spring relax just a tad and it goes away. Call me perplexed.

My Beretta and Para Ordnance double stacks never rattled.