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October 20, 2012, 07:56 PM | #1 |
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Bought a M&P Shield, Here's my Issue
I just bought a 9mm M&P Shield 2 days ago. I've put 150 rounds through it, and love it. I've just been noticing an issue with the +1 mag, not the flush mag. The slide release is getting stuck and not releasing the slide. It barely hangs on before it releases.
I made a youtube video showing the entire issue: http://www.youtube.com/watch?v=dS2ppi77ZCM
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October 20, 2012, 09:14 PM | #2 |
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Most modern semi autos lock back on an empty mag and the slide wont release unless you either pop in a fresh mag with ammunition, or take the mag out and release the slide. Does this happen with the extended mag with ammunition in it? Since the gun is meant to lock bag on empty mags it makes sense that the slide wont release with an empty mag in it. Also I would be careful with all that filing your doing, too much and the gun will stop locking back on an empty mag since you took off too much material. I don't understand why you didn't call Smith & Wesson first.
Edit: Just watched the end of the video. You know when the slide released all on its own without you touching anything on the gun, well it looks like you filed off too much metal and screwed up the slide lock on that gun. I would send it back to Smith & Wesson and hope they cover the cost to repair it. Last edited by Dragline45; October 20, 2012 at 09:32 PM. |
October 20, 2012, 09:36 PM | #3 |
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I don't think you understand the problem. I understand that the gun locks back on an empty mag. But when I racked it with the +1 mag, it won't release forward. When I do the same thing with the flush mag, it releases forward.
I'm not shaving down the slide lock to a point where it won't stay back. I was simply making it smoother so that when the slide catches that tiny corner, it releases through. It shouldn't be one with with one mag and another with a different mag. And it released by itself multiple times like that before I even touched it with sandpaper.
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October 20, 2012, 09:45 PM | #4 |
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I don't see it as a problem as long as it goes forward with a round in the mag; you said you didn't have any issues at the range correct?
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October 20, 2012, 09:52 PM | #5 |
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I don't remember having any issues there, but this still doesn't explain why it happens with one mag and not the other. Especially when you see how its just barely hanging on before it releases in the video.
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October 20, 2012, 09:56 PM | #6 |
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Many guns are very difficult to release the slide on with an empty magazine in place because you're fighting not only the friction of the slide stop against the slide and pressure of the recoil spring, but the pressure of the magazine spring as well. My guess would be that the reason you can release the slide more easily with the flush-fit magazine in place is because that magazine probably does not have as stiff a spring as the extended one does.
So long as you can release the slide easily with either a loaded magazine or no magazine at all, it's a non-issue. I really don't understand why it would be important to be able to release the slide with an empty magazine in place anyway, so I don't understand why you're all that worried about it. If you do have a problem with the gun, S&W has excellent customer service and will take care of whatever problem you may have. If you still think that there's something wrong with your pistol, you should stop filing on it and send it back to S&W. |
October 20, 2012, 10:06 PM | #7 |
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Regardless of the problem you shouldn't have taken sandpaper to the slide lock without knowing what your doing. You can clearly see in the video you are barely moving the gun with your hand nowhere near the slide release and the slide released all on it's own. Even if you did not take off that much material you could have changed the angle. Some guns from repeated use of the slide release over time can wear just enough material off where the slide fails to lock back, so taking sandpaper or a file to it really isn't the best idea. It does nothing to make the gun inoperable but during a high stress mag change when that slide releases all on it's own it could screw you.
Last edited by Dragline45; October 20, 2012 at 10:24 PM. |
October 20, 2012, 10:14 PM | #8 |
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I assure you the gun is still perfectly operable. As you all know, when the slide is back after empty, you can pull back while pressing the slide lock and it should release. It was barely moving then catching the tiny corner of the slide lock mechanism.
Just to be clear, I wasn't 'filing' on my gun. It was sandpaper to just smooth it out and round the corner. It barely even did anything to it.
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October 20, 2012, 10:21 PM | #9 | |
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As I said it does nothing to make it inoperable but it can certainly cause problems with the slide releasing on it's own or failing to lock back. I'm going by what I saw in the video and what I saw is the slide releasing on it's own with no pressure on it, with mention of on two separate occasions taking sandpaper to the slide lock. The only time I have ever seen a slide release all on it's own is from someone slamming a magazine in too rough.
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Last edited by Dragline45; October 20, 2012 at 10:35 PM. |
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October 20, 2012, 10:30 PM | #10 |
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It could be a magazine issue and not the slide release. I'd try a different magazine before doing anything else. The extended mag may not be seating properly because of that sleeve at the base too. Try inserting the magazines one by one without the slide on. Pay attention to how much the slide stop moves with each magazine.
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October 20, 2012, 10:45 PM | #11 | ||
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October 20, 2012, 10:58 PM | #12 |
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With my Shield, I noticed a bit of play in the magazine, even when fully inserted into the well.
But the slide shouldn't drop just because you slapped a new mag in. You should have to release it yourself to function properly. |
October 20, 2012, 11:04 PM | #13 |
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Yea the sandpapering did nothing to correct the issue anyways. The slide lock is still holding fine in place as when it was new so that's not an issue.
The part about me fighting against the magazine's spring tension makes the most sense here. I'll have to load it up and let it sit a while and see. Appreciate your help guys.
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October 20, 2012, 11:19 PM | #14 |
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I agree with Webleymkv.
I just wouldn't be sanding/modifying a part on a brand new gun that I thought was the cause of the pistol malfunctioning or not operating properly unless I was told to do so from the manufacturer. Unless I was willing to be okay with the manufacturer voiding my warranty. Too, you said the slide would release almost on its own with the standard mag. before you started sanding on the release. You may have a hard time convincing the gunsmith at S&W of this if he/she realizes you have been sanding on the release. Last edited by shortwave; October 20, 2012 at 11:25 PM. |
October 20, 2012, 11:41 PM | #15 |
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Sandpaper...S&W Shield?
My Dad took some sandpaper to his 1967 fiberglass body Corvett right after he bought it new off the show room floor. Is that kind of the same thing you guys are talking about?
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October 20, 2012, 11:48 PM | #16 |
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This is more like taking sand paper to the brake pads because they were too stiff.
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October 21, 2012, 12:09 AM | #17 |
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I thought the sandpaper trick would make a factory stock part more perfect.
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October 21, 2012, 06:47 AM | #18 |
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Yea, honestly you guys are taking the sandpaper thing too seriously. It is my gun and its not a big deal.
Like I said before, it hasn't hindered it in any way. The issue must be the tension spring on the +1 mag since its longer it will need to be worked out more.
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October 21, 2012, 09:41 AM | #19 | ||
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Secondly, most manufacturers frown on "kitchen table gunsmithing" and, in some cases, may void warranties over it. Please don't take this the wrong way, but you're attempting gunsmithing work without fully understanding exactly how the parts interact with one another. On the other hand, no one will understand better how your handgun works than the people who made it and since those people offer a lifetime warranty, you've undertaken modifications which may adversely affect the funtion of your gun (albeit in a non-critical way) needlessly. Quote:
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October 21, 2012, 11:40 AM | #20 | |
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October 21, 2012, 11:54 AM | #21 |
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I have a Shield and it works with either mag identically.
Being as yours doesn't I would consider it defective. You might be able to live with it today, but who knows what collateral damage it will have down the road. Your attempt to fix it yourself may've caused some warranty issues, though. Smith has an excellent, documented track record of fixing issues with quick turnaround. I bought a new Smith 1911 and had extraction issues right out of the box. Called customer service, they issued a FedEx call tag and the gun gone less than two weeks, door to door. Finally, while others are quick to pass judgement, I could care less. It's your gun. |
October 21, 2012, 12:19 PM | #22 |
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There is no reason why you should ever be putting the slide forward on an empty magazine. If you're reloading, you will be putting a full mag in the gun. If you're unloading, the magazine should be out of the gun entirely. If you really need to put an empty mag in an empty gun, just put the mag back in after the slide is forward.
Different capacity magazines have different strength springs. When empty, one will push up on the slide stop harder than the other. When you're trying to drop the slide on an empty mag, you're fighting that spring pressure. But as long as the magazine seats properly, feeds properly, and locks the slide open after the last shot, this is a complete non-issue.
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October 21, 2012, 12:22 PM | #23 |
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Webley,
The part about the slide going back on its own was happening before I even touched it with sandpaper. I will take it to the range again and test this out with ammo. The thing you guys need to keep in mind though, is that not everyone has owned guns for years. This is my first handgun. It just didn't make sense for it to be doing that with different magazines.
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October 21, 2012, 12:56 PM | #24 | ||||
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Originally posted by spanishjames
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Originally posted by mitchntx Quote:
Originally posted by NerdNoise Quote:
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October 21, 2012, 01:09 PM | #25 | |
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9mm , m&p , shield , smith and wesson |
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