Do all the M&P magazines rattle when full? All of mine rattle with any more than 11 rounds in them (9 or .40) in them.

Quite to the contrary with my M&P mags. When they're full, there isn't ANY room for movement in both 9mm and .45. Even -1 or -2 rounds, no rattle what so ever. Now, my 7 round officer size mags on the other hand, they all rattle like ball bearings in a coffee can.

From what I've read some rattle and some do not. I know a few rattle until you put them fully loaded into the gun so who knows? So far, none of the ones I have rattle.

__________________
Why duck?? It's a 9mm!

I bought 4 more today and they all rattle....

I don't have a rattle problem with my M&P, but both of my glocks rattled.

Mine rattle, shot it,kept shooting it,forgot about it.

I'm getting over it but it does bother me that people can hear them rattling. Kinda defeats the whole conceal part with the rattle.

My mags rattle with .40 S&W in them but not with 357 SIG.

Empty=rattle. Full=no rattle.

Even some that are full rattle and some don't. Not sure why, but it happens.

i have all 3 poly frames.....M&P 9 does not rattle,,sigma 9 no rattle, SD rattles like bad doors on a 67 Buick
called S&W about it and they said that they had a few other comp. make the mags and some were just a hair bigger but will work A-OK in the gun......i took a mag apart and stuck 1 small piece of black on the inside back wall....no more rattle..no problems with feeding either,
good luck

__________________
Scott from Canton Ohio

My 15 round .40 mags rattle like crazy. But not with all ammo brands. My glock g21 13 round mags do it too. I don't like it.

It's the bullets rattling in the mags. Not the mags rattling in the gun

I have a theory about the rattle. I believe it is caused by the rounds of ammo in the magazine not seating properly against each other allowing some wiggle room if you will. I have a 9mm Kel-Tec P-11 with magazines that sometimes rattle. I find that if I give the side of the full magazine a good rap or two against the palm of my hand the rounds seat themselves and no more rattle. By the way, my M&P 40 magazines do not rattle... or have not with the ammo I have used so far.

__________________
Life Member B.A.S.S., NAFC

I figured mine was from My handload ammo dies.