M&P Sport no fire

[Photogdave]

New member here

I've read a couple threads here for my inside and found some good info.
But some wasn't covered

I recently purchased a new M&P Sport 556. I believe it's the sport 1, but I second guess that because I was told the sport one didn't have dust cover or assist.
Mine has both
But box was marked Sport 1 and had no sights. I purposely bought it with flat top, adding stuff later.

So to point. I did nothing to this gun. I took it straight out with two 30rd PMAG, shot both mags with PMC Bronze .223. No issues at all.
I then purchased PMC XTAC in 556 not green tip.
And I had several failures.
The primer looked to have been struck but no fire.
I say several, 4-5 rounds per mag.
On a few of those instances I'd get on trigger and it was dead, and then I'd hear a click like it reset and it would fire.
So recap:
Fire a shot, I'd wait 5-6 sec to fire another and nothing
Then 2-5 sec later I'd hear light click like reset and then it'd fire
I've been told I should have cleaned this gun before I shot it.
I didn't know that. It appeared clean and had a good amount of oil.
I've been told clean it and run it dry. As in light oil on matting surfaces like a handgun and everywhere else dry.
But I've also read several others including here that this gun likes to be run wet.
Thanks for info in advance

 

[TX-Dennis]

The protective shipping grease is not really oil. It's quite a bit thicker, so that could be your issue. Clean it up thoroughly as per instructions in the manual or you can find a youtube video on disassembly and cleaning. Oil it as instructed by the diagram in the manual, then take it and shoot it again.

Chances are it will be fine, but should it continue to malfunction a call to S&W will put things right. They'll email you a shipping label, and they will fix whatever is causing the issue.

 

[Photogdave]

I'll give that a try. It didn't come with a manual perse. But I've cleaned and oiled a lot of guns. I can see where it will need oil and make sure that's coated. I've just never had an AR before.
But it did seem a good bit more wet than I've seen.
I guess there's differing opinions on wetter vs more dry. I've seen more say these guns like to run wet. More so than other guns.
But I can also see where, there's no real need for oil to be on a surface that has no contact with anything else. Like pilot the outside of a gun. Unless it's to prevent rust. And having it excessively oily will just attract debris of every round fired.

 

[cyphertext]

I'll give that a try. It didn't come with a manual perse. But I've cleaned and oiled a lot of guns. I can see where it will need oil and make sure that's coated. I've just never had an AR before.
But it did seem a good bit more wet than I've seen.
I guess there's differing opinions on wetter vs more dry. I've seen more say these guns like to run wet. More so than other guns.
But I can also see where, there's no real need for oil to be on a surface that has no contact with anything else. Like pilot the outside of a gun. Unless it's to prevent rust. And having it excessively oily will just attract debris of every round fired.

The first Sport (or Sport 1) weren't marked as Sport 1 on the box, because there was only one Sport. The original Sport came with the standard, fixed front sight tower and a removable, non-foldable A-2 style sight, like a chopped carry handle sight. They came with a 1:8 twist barrel and did not have a dust cover or forward assist. The first change by S&W was to replace the rear sight with a folding, Magpul polymer rear sight.

After several years, S&W changed from the 1:8 twist to the 1:9 twist, but still did not have the forward assist or the dust cover. Then, S&W added the forward assist and dust cover and sold it as the Sport 2.

Where did you purchase your rifle from? Did it come from a dealer? Was it new? The box being marked as Sport 1 and not having a manual makes my spidey sense tingle... If you bought it new, no sights and has forward assist and dust cover, then my bet is that it is the Sport II ORC (Optics Ready Carbine) but it should have a manual.

 

[Ranger17]

Side note on manuals, I know the SW site has them for their handguns (I've downloaded copies to keep handy) so i would assume they will have them for the Sport series as well

 

[Photogdave]

The first Sport (or Sport 1) weren't marked as Sport 1 on the box, because there was only one Sport. The original Sport came with the standard, fixed front sight tower and a removable, non-foldable A-2 style sight, like a chopped carry handle sight. They came with a 1:8 twist barrel and did not have a dust cover or forward assist. The first change by S&W was to replace the rear sight with a folding, Magpul polymer rear sight.

After several years, S&W changed from the 1:8 twist to the 1:9 twist, but still did not have the forward assist or the dust cover. Then, S&W added the forward assist and dust cover and sold it as the Sport 2.

Where did you purchase your rifle from? Did it come from a dealer? Was it new? The box being marked as Sport 1 and not having a manual makes my spidey sense tingle... If you bought it new, no sights and has forward assist and dust cover, then my bet is that it is the Sport II ORC (Optics Ready Carbine) but it should have a manual.

I've done some digging tonight.
I'm 99% sure it's sport II optic ready as you stated
Yes I bought new in box from a dealer. I think I do recall the manual being in the box now that I think back on it.
I just didn't even look at it. It's an AR, I've shot many, just never owned one. So I just took it out and ran 2 mags through it to make sure I was zero and reliable with my ammo.
The box wasn't marked Sport I
He just had two stacks in floor, One stack optic ready like mine for $50 less than the one with A2 post
I knew I was going to be doing other stuff with it so I just opted to go with flat top.
But it has dust cover and forward assist so I'm gonna say it's the sport II.
Been buying some more ammo last couple days
Stuff is hard to get these days.
Just buying what I can.

 

[cyphertext]

I would give it a good cleaning and oil it per the manual and give it another try as suggested.

 

[rtquig]

Did you try the original PMC Bronze after having trouble with the X-TAC?

 

[Photogdave]

Did you try the original PMC Bronze after having trouble with the X-TAC?

No, that implies I had more to shoot. The wife really likes to shoot and we can't seem to keep ammo around. It's so hard to find right now. I did score a small place where I'm working this week. Little pawn shop locally that allows me two boxes a day. So I go in every day this week and buy what they allow. 100- Box of .380 and two 20-PMC 5.56 greet tip. But they ran out of that and now it's back to 223 Bronze.
Going today again
Once I get back in town I have a good friend that loads his own and has almost endless 223. I'll probably talk him out of a bunch of that to go to range with and have backup.
But even whatever deal he'll give me is hard to beat $9 a box at this pawn shop. That's the cheapest I've seen it anywhere....IF you can get it.
Once I get back in town I plan to take it down and really clean it thoroughly and see how it does.
I haven't had anyone tell me the ammo I have is bad. I've shot PMC a good bit and they've always seemed to be good.

 

[Rastoff]

There are some things missing from your description, but it's better than we usually get.

I suspect it will get better once cleaned properly, but if it doesn't, come back and ask again. I'm sure we can get it running.