i got a brand new m&p15 sport about a week ago and had the opportunity to shoot it today

after about 3-5 rounds, the bolt stopped cycling. I was shooting independence 55 grain 5.56, after the first failure to cycle i changed to m855 and  a pmag but no dice

i noticed that the hand guard was a little loose, then noticed that part of the gas tube was exposed (much more than normal)

in the pictures you can see the wear marks on the barrel where the fsb moved 

i already sent an email to s&w about it 

 

 

UPDATE:

 

I received the rifle about a week ago and put about 200 rounds through it this past weekend with no issues at all 

 

next order of business is to put a new stock on this thing

Thats beat.  Did the person doing your compliance work loosen it for some reason?  Looks like it just needs to be moved back into position and tightened up. 

its complaint straight from smith & wesson, but its still under warranty so im gonna let them handle it 

Wait, you dont have any taper pins on there?

 

See those two little nubs on the bottom of the FSB there?  They are what hold the FSB in place.  I don't see any on your picture.  Could be why its moving around there

Wait, you dont have any taper pins on there?

That's what I said when I saw the pic.

shit your absolutely right, ill call and ask about it tomorrow, this better be under warrant 

do you think i just got a dud or have others had a similar issue?

I would think so.  It is defective due to worksmanship.   Kinda sucks you'll have to send it to them so they can drill and install the pins though. Looks like you got the shart that slipped through the butt cheeks.  

No FSB pins?  Factory screwup.

do you guys think i need to send in the entire rifle, or can i just send the upper?

do you guys think i need to send in the entire rifle, or can i just send the upper?

Logic would suggest sending just the upper would be easier and cheaper.  Company policy, however, may say since it left as a rifle, it has to be serviced as a rifle.  S&W will let you know what needs to be done.

Most likely just the upper.  And make sure THEY pay for it.  

They may want the whole rifle so they can test fire with the paired lower. THey can of course use another lower, but since its a warranty thing they may want the whole rifle

shit your absolutely right, ill call and ask about it tomorrow, this better be under warrant

do you think i just got a dud or have others had a similar issue?

Did you talk to them? Interested to know how they want to fix it.

WOW!!!! How the HELL did that make it out of the factory without the FSB being pinned?

I've had mine for sometime now and it's been flawless. Looks like someone at the factory screwed up big time.

i got an email from them yesterday, theyre sending prepaid and pre-insured postage to send in the rifle for inspection, i would be THAT guy that gets the dud lol

I've had mine for sometime now and it's been flawless. Looks like someone at the factory screwed up big time.

can you post a picture of your fsb so i have something to compare it to? im gonna send pictures to specifically illustrate their screw up 

Lol at least your getting it fixed.

can you post a picture of your fsb so i have something to compare it to? im gonna send pictures to specifically illustrate their screw up 

 

I'd say just a description is fine....anyone who knows anything about AR-15's is going to take one look at that and know right away the issue.

i got an email from them yesterday, theyre sending prepaid and pre-insured postage to send in the rifle for inspection, i would be THAT guy that gets the dud lol

Make sure they pay for the TRANSFER and NICS at the FFL when they send it back to you (if required) There is no reason why you should have to pay and additional $45+/- for something that left the factory wrong in the first place.

 

or at the very least have them send you 2 free mags to recover the costs for the transfer and nics and time lost without your rifle.

The rifle should and will be shipped directly back to the owner without going through a dealer.

I just picked up my first AR15 yesterday - M&P 15 Sport.  I read this thread and don't see the nubs being referenced here.  Does mine look ok?

 

 

It is fine

Thanks (and thanks for the post on Tanners where I picked this up yesterday).

you are welcome

Wow - no sign of taper pins! Rough day at the gun mill? Things that make you go "hmmmmm...".

 

On a completely unrelated topic, well, I'll just leave this here...

 

http://www.grammar-monster.com/easily_confused/youre_your.htm

 

Yikes! You know who you are!

ive been away at school the past few weeks, and apparently I still haven't received any shipping label from s&w

UPS probably came to pick up the package with a call tag. If no one was there, they will just leave. OR, check your email for the label.

Must have been a Friday@ 430 QA pass

 

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