M&P9 jams 1st 4 rds of a mag. CS fails

[[email protected]]

I bought a new M&P9 about a year ago. It has not fired properly since i brought it home. The first four rounds of each mag will fire, eject, but the new round gets fetched up just before it gets into the barrel until i manually rack the slide. The rest of the rounds in the mag fire just fine.

I sent it back to S&W, they had it for two months, would not answer any questions, and I just got it back saying they replaced the barrel, and the problem is still there, no change.

I am using winchester range ammo. I have tried some other ammo with same results.

I only have about 50 rds through the gun. Ive had people tell me i need to put a couple hundred rounds through it before it will work right. This doesn't work for me on a few levels. I bought the gun for home defense, not sport. If it said on the tag in the store that it would not work right as it sat, I would not have bought it.

S&W is telling me to send it in again. No other info except send it in. Am I wasting my time? If they cant fix it after having it for two months, what the hell are they going to do this time??

Did I just get a lemon ?

 

[shawn mccarver]

Send it back to S&W.

 

[jurek]

Send it back. Hopefully they will check recoil spring as well, before changing barrel again.
...
Or ...
If you are familiar with basic gunsmithing, you can polish feed ramp and put new recoil spring to eliminate two simple issues with feeding and cycling.
If this won't help... pray for a brand new firearm from S&W

 

[326MOD10]

While I understand your frustration I would never trust my life, or the life of a loved one, on a firearm that I haven't put 500 rounds through and found it to be reliable.

My M&P was running good from the box so hope they can figure out issue with yours.

I might suggest, if you are not a regular shooter, to have someone who is run rounds through it. Sometimes malfunctions can be induced by the user.

 

[jurek]

[email protected],
I'm confused, once I read it several times...

What is exact problem?

1. M&P9 jams 1st 4 rds of a mag
or
2. The first four rounds of each mag will fire, eject, but the new round gets fetched [...] The rest of the rounds in the mag fire just fine

So first four rounds, or fifth round only?

 

[GaCop]

Sell it and invest in a Springfield XD or FN. I'm lucky, my M&P 1.0 and Shield have been functioning just fine from day one.

 

[hardluk1]

Sam Its sorta hard to follow your explanation of your problem. Might be a mag issue. Take it apart and clean it. Look for a dings or burs in the mags body , bebur the edges of the follower. Try an ammo you might hope to carry or something other than white box 115gr fodder. Clean & lube the pistol well.

Owning this pistol for two years and only 50 rounds fire it's not even broke in to you or fired enough to run smoothly yet so be sure your grip it tightly might even wear some nytrile coated gloves that greatly increase grip control.

You do have more than one mag to use or try, right? Do other mags cause the same problems with the fifth round to chamber? You did clean to pistol well as the factory "lube " is preservitive not oil, aka lube .

If you have a friend that has far more experience shooting than you ask him to give it a try after he looks it over, clean or lube as he wants to and use his ammo of choice that you pay for. Seems to me like theres something small your overlooking maybe do to lack of experience.

 

[Univibe]

Sell it and invest in a Springfield XD or FN. I'm lucky, my M&P 1.0 and Shield have been functioning just fine from day one.

What are the ethics of sticking somebody else with a gun you know doesn't work?

You see this all the time on gun forums.

 

[Bozz10mm]

If it fails to feed every time on the 5th round only, i would suspect a magazine spring problem. Perhaps it is binding at a certain point.

 

[MorrisGray]

Sad to hear about your problems. I know many people who like S&W handguns but I have read in several articles and reviews from others about some problems with their various models. Certainly not something I would have ever expected. I am currently shopping for some new semi automatics myself and hope you will post your eventual outcome here for us to read.

Good Luck...

 

[shipwreck]

Send it back to S&W.

This, give them another chance - just ask for a shipping label so you don't have to pay shipping costs

 

[MyDads38]

I own several of the M&P line of handguns; Shields, Compacts and Full Size in 9mm, 40 & 45 acp. Both new and used. None of them have ever given me any issues with firing or functioning. Always clean and lube, whether new or used. They will all function with factory or my reloads. As mentioned above, check your mags for any burs or debris, clean and reassemble. Have someone else fire the gun and/or have someone watch you fire the gun (an instructor or experienced shooter) to check your grip, stance, etc. I have fired guns at the range that others say would malfunction or weren't accurate; usually it's NOT the gun. When all else fails, send it back till it gets repaired.

 

[rd97]

Really sounds like a magazine issue to me.

 

[Tiribulus]

If it fails to feed every time on the 5th round only, i would suspect a magazine spring problem. Perhaps it is binding at a certain point.

Something like this occurred to me too.

If it were the feed ramp or the follower or something it should do it all the time.

 

[Saudade]

<snip>I sent it back to S&W, they had it for two months, would not answer any questions, and I just got it back saying they replaced the barrel, and the problem is still there, no change.

Did you send the magazines back with it?

 

[sousana]

For me, before a weapon goes into self defense rotation it must:

1. Fire 500 rounds ball flawlessly with ZERO malfunctions
2. Fire 250 rounds of Carry Ammo flawlessly with ZERO malfunctions.

Prior to beginning the test the gun will be broken down, fully inspected and lubed, then put back together and wiped down and relubed every 100 rounds. If it fails at any point in 1st or 2nd trial, even at next to last round, that rotation begins again after the weapon is cleaned, lubed and made ready again. And yes, I know this may not be for everyone but it's the way I do it.

 

[southchatham]

If you can have someone else shoot those Winchesters in your gun to rule out limp wrist.

After loading a magazine tap the bottom and primer side end of the mag twice each to seat the rounds.

 

[Old cop]

Send it back until it’s fixed or replaced, then consider getting rid of it & getting something else.

 

[Execpro]

hardluk1 has a good point about the magazines.
When I got my Shield 9mm 1.0 a few years back, I took the mags apart (like I always do on new pistols) and look for rough edges or extra plastic
on the follower (which both new mags had) and any other issues. After trimming off and smoothing the rough part(s), I run a cleaning patch with Rem oil on it through the mag(s) body and wipe down the follower. Then run a clean patch to remove any oil from follower/mag(s).
This process smooths or slicks up the mags interior and followers.

 

[Tu_S]

What exactly does "the new round gets fetched up just before it gets into the barrel until i manually rack the slide" mean?

Also, does everything work fine after the fourth round? Have you tried a different magazine? Have you tried loading the magazine to capacity -5 rounds?

I would suspect a problem with the magazine, but have no idea of what "gets fetched up" is attempting to describe.