M&P 40 malfunctions

[SHAUN_BAUER]

I have an m&p 40 that is failing to fire and jamming brand new only shot twice any ideas what is wrong
I have already sent the gun back to Smith and Wesson just curious what couldve been wrong and if anyone had experienced similar problems

 

[clonies]

What ammo were you using?

 

[SHAUN_BAUER]

well i tried two brands federal and winchester it malfunctioned both times

 

[BlueEagle]

FMJ, HP, SP, SJHP.....we need more details.

 

[SHAUN_BAUER]

ok sorry fmj 180 grain

 

[DustyDawg48]

Could you be more specific on the malfunctions? Will it be fully int battery but it won't fire? Or will it just not fully go into battery? It could be what people have called. 'dead trigger' where it just won't reset.

 

[SHAUN_BAUER]

the first time i shot it with the winchester it just would fire a few times then fail by me pulling the trigger and you could hear the firing pin but nothing happened you could even see where the pin hit the primer my friend shot the same ammo out of his glock no problems. the second time it was the federal ammo no ftfs just jammed so badly it took five minutes to un jam and pull out the ammo

 

[Shift Zombie]

I saw this happening with a guy at a local range. It was almost every shot he would have to recharge the gun to get the damn thing to chamber. Try cleaning your mags really well. and your gun for that matter. If it still has the factory crap on it, it may be causing the malfunctions. Possibly. . .

 

[SHAUN_BAUER]

had cleaned and lubed the gun prior to taking it to the range mags as well

 

[DustyDawg48]

Sounds like what I've heard called a dead trigger. It has happened on a few M&Ps. If you haven't already, contact Smith and they will make it right for you. As far as the failure to eject/extract, I'd make sure to mention that, too and I'd have no idea of what the problem may be.

 

[zibby43]

Sounds like a defective striker (if I am reading your post correctly, i.e., you were experiencing light strikes) coupled with a barrel that has a nasty bur on the feed ramp (contributing to the FTFs).

S&W will fix it. Good luck.

 

[SHAUN_BAUER]

Well got my M&P 40 back from smith and wesson they replaced the striker assembly we will have to take it out and test it asap

 

[rgrimm01]

5 day turn around. How cool is that? I have been seriously considering the M&P's 9 and 9c for my Lady and me. I will be looking forward to your range report on the repair.

 

[JGulley317]

Well got my M&P 40 back from smith and wesson they replaced the striker assembly we will have to take it out and test it asap

Please do tell us the range report. Use the same ammo. WWB and Federal. That was a quick turn around though.

 

[Glockfan]

5 day turn around. How cool is that? I have been seriously considering the M&P's 9 and 9c for my Lady and me. I will be looking forward to your range report on the repair.

I have an M&P 9c. We have shot it a few times without any issues. It's still a little to bulky for my wife even with the smallest back strap.

 

[SHAUN_BAUER]

it was actually almost two weeks but not bad turnaround really for the trip it made they probably had it a little over a week the rest was shipping time will be sure to put the range report up to let you know how the repair does after Monday

 

[Revolverman357]

when my M&P 9MM FS has some of the same issues, I made sure the mag lips were smooth with no burrs and after about 200 rounds of break in, it has never failed. It now has several thousand rounds through the gun and never misses a beat.

 

[rgrimm01]

I have an M&P 9c. We have shot it a few times without any issues. It's still a little to bulky for my wife even with the smallest back strap.

This is a concern. It does seem to fit her hand and the M&P is one of 2 autos(the other being a Beretta 92fs) that we have found that she can rack the slide. I am looking at it from the perspective that if the gun is not a good fit for her then I have picked up a summer carry... We are trying to stay in the 9mm caliber for her and not go to the .380. She likes the looks of the Beretta 84 or 85 but I am not thrilled with the .380 as a defensive caliber. To the op, how was S&W fix of your firearm?

 

[Newbomb92]

it was actually almost two weeks but not bad turnaround really for the trip it made they probably had it a little over a week the rest was shipping time will be sure to put the range report up to let you know how the repair does after Monday

What work did they do?

 

[DustyDawg48]

This is a concern. It does seem to fit her hand and the M&P is one of 2 autos(the other being a Beretta 92fs) that we have found that she can rack the slide. I am looking at it from the perspective that if the gun is not a good fit for her then I have picked up a summer carry... We are trying to stay in the 9mm caliber for her and not go to the .380. She likes the looks of the Beretta 84 or 85 but I am not thrilled with the .380 as a defensive caliber. To the op, how was S&W fix of your firearm?

Have you checked the Ruger LC9? Single-stack 9mm that feels pretty good. I'm thinking one for myself.