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Smith & Wesson M&P Pistols All Variants of the Smith & Wesson M&P Auto Series


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Old 01-06-2017, 06:26 PM
HKSmith HKSmith is offline
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Default .45 Shield problem

I bought a .45 Shield about 2 months ago and am delighted with the handling, trigger, grips, and accuracy. However, I've had a recurrent malfunction about every 20 rounds. About 3-4 rounds into the magazine the slide gets stuck without actually being locked back. If I drop the magazine, the slide goes forward. If I rack the slide the short distance left, the round feeds but sometimes jams at a 45 degree angle. This problem is independent of ammo type or magazine.

Any thoughts? I have not yet called S&W hoping that this would be a break-in problem, but it happened today and round count is above 300.
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Old 01-07-2017, 01:40 PM
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Anyone have this problem or have any thoughts?

Thanks.
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Old 01-07-2017, 01:52 PM
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Since it is brand new.......If there are no concerns about ammunition, (does this with factory ball ammo) proper grip,( or somehow impeding the slide with your grip) cleanliness and/or adequate lubrication, I would give S&W Customer Service a call. 1-800-331-0852
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Old 01-07-2017, 10:56 PM
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Proper lubrication? A new pistol, shooting quality ammo should not have such issues. If application of a decent oil doesn't solve the problem, you might try light white grease on the bearing surfaces, if that doesn't work, then a call to S&W Customer Service is probably in order.

Best of luck
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Old 01-08-2017, 12:04 AM
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Mine did that, S&W fixed it in 3 week turnaround. Call S&W and get a return label by email to send your Shield to them for repair. Put a note in the box explaining the problem as you have written here.
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Old 01-08-2017, 09:08 AM
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Just got mine back from S&W for the second time for a similar problem- mine would lock back on a partially full magazine on a regular basis. Only difference was my slide actually locked back, not stick back. First time they replaced the slide lock which didn't help at all and the second time they replaced the locking block which appears to have cured the problem. Just put around 150 rounds through it at the range with only one early on lock back and no further issues. Will need to put another 100-200 rounds through it before I consider it reliable for carry.
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Old 01-08-2017, 04:25 PM
HKSmith HKSmith is offline
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Thanks for your replies. This is not a lubrication or "limp wrist" problem. I'll call S&W tomorrow; it sounds like I'm not the only one to have this issue.
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Old 01-12-2017, 01:30 AM
gb6491 gb6491 is offline
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Quote:
Originally Posted by HKSmith View Post
I bought a .45 Shield about 2 months ago and am delighted with the handling, trigger, grips, and accuracy. However, I've had a recurrent malfunction about every 20 rounds. About 3-4 rounds into the magazine the slide gets stuck without actually being locked back. If I drop the magazine, the slide goes forward. If I rack the slide the short distance left, the round feeds but sometimes jams at a 45 degree angle. This problem is independent of ammo type or magazine.

Any thoughts? I have not yet called S&W hoping that this would be a break-in problem, but it happened today and round count is above 300.
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Originally Posted by HKSmith View Post
Thanks for your replies. This is not a lubrication or "limp wrist" problem. I'll call S&W tomorrow; it sounds like I'm not the only one to have this issue.
Contacting S&W is probably the best course of action, so please keep that in mind if you read the rest of my post.

I had multiple malfunctions as you describe with my 45 Shield. What I found was the round that caused the stoppage had nose dived enough that it was getting caught under a ledge on the locking block. Here's a photo that shows where the ledge is located (unfortunately, the photo does not show how substantial the ledge is):

I didn't feel like sending my pistol back (it had already been back for about 4 weeks to fix an out of the box cosmetic issue), so I just modified my locking block and I've not had a re-occurrence of the stoppage.
Regards,
Greg
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Old 02-20-2017, 04:22 PM
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Default Same slide locking back issue

I am also having the issue of the slide locking back when the clip still has rounds in it. I sent it back to S&W with out the clips per their instructions and they returned it back too me saying they put 5 clips thru it and could not reproduce issue therefor nothing to fix. When I got it back I took a dremel to the location one writer talk about on the grip portion of the gun. Took it to the range and it malfunctioned twice on the first clip and 4 more times in 3 clips. I have since returned it to them again with the clips as per their instructions. I am hoping they can fix the issue but not real confident. Is this a common issue? I don't seem to here a lot of this issue. Did I possibly just get a lemon?

Last edited by thumper151; 02-20-2017 at 04:23 PM. Reason: title change
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Old 02-21-2017, 12:19 PM
outflyin outflyin is offline
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This exact problem starting happening with my new .45 Shield after about the first 6 magazines had been run through it flawlessly. Cleaning and lubricating the magazines resulted in 4 more magazines without a problem, but it started happening again after that. I'm also having a problem of the magazine releasing unexpectedly sometimes during firing.
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Old 02-21-2017, 06:05 PM
hyena hyena is offline
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I had that happen with a borrowed .45 Shield. I happened to stop at an indoor range, and looked at the rental guns. I mentioned to the owner if he had a .45 Shield, I would have rented it, being interested in one. He pulled his personal Shield off his hip and offered it to me, telling me he had upgraded from a 9mm Shield and this one could use some rounds through it.

At any rate, I ran through one box of 230 grain FMJ. About halfway through the box, halfway through one magazine, the slide locked back.

Not drawing any conclusions from one malfunction on a new gun. Just passing on that it happened to me too.
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Old 02-21-2017, 06:14 PM
Pisgah Pisgah is offline
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This is just a suggestion, but I have personally encountered problems, as have others I know, with small pistols that have substantial recoil. It depends very much on subtle differences between hands and pistol grips, but often a magazine release can be hit by a thumb with the shooter completely unaware. Sometimes a magazine will fall free when this happens; sometimes it will just drop down slightly but stay in place, and it can make for some weird symptoms.
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Old 02-21-2017, 06:35 PM
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Ran 4 more magazines through it after cleaning the gun at the end of the previous outing, overlubing it with CLP, and just spraying a little Rem Oil around the magazine followers.

I used all ball ammo this time in both stock mags, wore gloves and used a firm two-handed grip throughout.

I had no unintentional mag releases and no occurrences of the slide getting stuck part way back.

However, I did have two other failures that were different.

One was the slide did actually lock all the way back with the slide lock engaged and rounds still in the magazine. Thumbs were nowhere near the slide lock lever.

The other was when the trigger clicked on an empty chamber. The slide had cycled normally but no round was picked up.

May have to send it in or just keep "testing" it until it straightens out.

I love how quick this gun gets back on target.
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Old 02-21-2017, 06:48 PM
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Posted pics of my ramp in the other thread: Shield 45 issue

Post #34
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Old 03-22-2017, 11:38 AM
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Quote:
Originally Posted by hyena View Post
I had that happen with a borrowed .45 Shield. I happened to stop at an indoor range, and looked at the rental guns. I mentioned to the owner if he had a .45 Shield, I would have rented it, being interested in one. He pulled his personal Shield off his hip and offered it to me, telling me he had upgraded from a 9mm Shield and this one could use some rounds through it.

At any rate, I ran through one box of 230 grain FMJ. About halfway through the box, halfway through one magazine, the slide locked back.
Interesting story. So what was HIS reaction (to this overall problem) when you gave it back to him?
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Old 05-22-2020, 08:08 AM
BooneCounty BooneCounty is offline
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Default firing pin?

I noticed after about 300 rounds thru my .45 M&P Shield, the primers were being hit in the center as they should and with significant force however, the primers also had a small cut on each primer extending from the center of the toward the rim of the primer pocket. Inspection of the gun showed a wearing of the firing pin "hole" that looked like it had been for lack of a better definition, ramped. The gun functioned fine with no indication of any issues. A local gunsmith told me the wear was abnormal and I should return it to S & W which I did. Haven't heard anything from them as of yet. The customer service lady didn't want me to send any examples of the spent brass or a magazine. Anyone had this problem?
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Old 05-22-2020, 08:57 AM
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How old are the ones that are having issues. I bought one of the first ones produced. Have over 500 rounds of WWB through it and no problems discussed here have occurred.
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  #18  
Old 05-22-2020, 09:16 AM
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"Inspection of the gun showed a wearing of the firing pin "hole" that looked like it had been for lack of a better definition, ramped."

I have the same gun. Can you post a clear photo of the area described?
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Old 05-22-2020, 01:07 PM
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Quote:
Originally Posted by gb6491 View Post
Contacting S&W is probably the best course of action, so please keep that in mind if you read the rest of my post.

I had multiple malfunctions as you describe with my 45 Shield. What I found was the round that caused the stoppage had nose dived enough that it was getting caught under a ledge on the locking block. Here's a photo that shows where the ledge is located (unfortunately, the photo does not show how substantial the ledge is):

I didn't feel like sending my pistol back (it had already been back for about 4 weeks to fix an out of the box cosmetic issue), so I just modified my locking block and I've not had a re-occurrence of the stoppage.
Regards,
Greg
I have had, a few times, a round in the mag dive down and the slide cycles but can't pick up another round.
This has ONLY happened with Speer 200 grain Gold Dots, everything else has functioned 100%.
But it looks like the Gold Dots are catching on the locking block "ledge" as gb6491 had happen with his .45 Shield.
Next time I have the locking block out I'll see if I can knock down (smooth) that ledge.
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Old 05-22-2020, 01:14 PM
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Quote:
Originally Posted by BooneCounty View Post
I noticed after about 300 rounds thru my .45 M&P Shield, the primers were being hit in the center as they should and with significant force however, the primers also had a small cut on each primer extending from the center of the toward the rim of the primer pocket. Inspection of the gun showed a wearing of the firing pin "hole" that looked like it had been for lack of a better definition, ramped. The gun functioned fine with no indication of any issues. A local gunsmith told me the wear was abnormal and I should return it to S & W which I did. Haven't heard anything from them as of yet. The customer service lady didn't want me to send any examples of the spent brass or a magazine. Anyone had this problem?
I think firing pin "drag" on the primer is common with the .45 Shield. I never noticed it on the 9mm or .40 Shield, but both of my .45 Shields have done that.
Likely you'll get it back and it'll still have firing pin drag on the primers.
It is what it is.
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Old 05-22-2020, 05:26 PM
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I have had firing pin drag on more than one of my pistols with no problems.
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Old 05-22-2020, 07:34 PM
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Geez. Was "considering" acquiring a .45 M&P Shield until reading the inherent problems discussed here...no way! Will just stick with 9mm. Thanks for the education...for sure.
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Old 05-22-2020, 07:53 PM
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Quote:
Originally Posted by OldGoat View Post
Geez. Was "considering" acquiring a .45 M&P Shield until reading the inherent problems discussed here...no way! Will just stick with 9mm. Thanks for the education...for sure.
Meh, this is a very small cross section of Similar issues Compared to the thousands of .45 M&P shields sold. Iíve had mine for a little over a year now and I havenít had Any issues with it at all.
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Old 05-22-2020, 08:33 PM
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Got a shield 45 about 3 years ago.At first, I did have an issue with one of the mags backing out some but it still cycled. S&W sent some new followers, easy fix and problem solved. I have put 750 rounds through it with various fmj and jhp without any problems. In fact, it shoots soft, is very accurate with great fit and finish for what it is. I would get another in a heartbeat.
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Old 05-22-2020, 08:51 PM
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I agree. I think they work well for a lot of people. I think it is a combination of large caliber, compact size and different people's hand size and strength. My hands aren't small but they aren't huge either and my grip strength isn't what it used to be. I think the 45 Shield is probably pushing the limits of how small a 45 can be and still work well for a lot of different people.

Mine functions flawlessly with Remington Golden Saber and Remington Ultimate Defense so that's all I use in it. That's a small compromise to have what I've been looking for so long: the most comfortable carry-able, compact 45 I could find.
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Old 05-22-2020, 08:53 PM
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Well my Colt 1991A1 Combat Commander in .45 runs great...9mm Shield is good backup. Can get by without .45 Shield.
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Old 05-22-2020, 08:58 PM
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That's it, whatever works. We're all different. I like my Ruger LC9 when the 45 Shield is too big.
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Old 05-23-2020, 01:21 AM
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Quote:
Originally Posted by OldGoat View Post
Geez. Was "considering" acquiring a .45 M&P Shield until reading the inherent problems discussed here...no way! Will just stick with 9mm. Thanks for the education...for sure.
Most of the above posts were from three years ago. The issues reported have not occurred recently with the Shield 45. I had some initial failures to feed after I bought my Shield 45 in February, 2017. These were completely remedied with redesigned followers that S&W sent to owners in November of 2017. I've shot 4,200 rounds since with zero problems.

As to "striker drag", I wasn't even aware of it until there was an extensive discussion of it on the SIG Talk Forum. The conclusion after many posts was that it is a complete non-issue. As it turns out, both my Shield 45 (7,600 total rounds) and my M&P 40c (15,900 total rounds) have striker drag, yet they've been totally reliable and it has not affected their performance in any way. Check out the attached photo. Shells from my Shield 45 are on the left. Shells from my M&P 40c are on the right. (The ones in the middle are from my SIG P320.) The striker drag from both S&Ws is extensive, but with 23,500 problem-free rounds between them, I'm convinced that it's normal, and it doesn't mean a thing.

I also own a Shield 9 with 5,800 rounds though it. After renting a Shield 45, I was so impressed, I immediately bought one. My Shield 9 has mostly been on the shelf ever since, because my Shield 45 is so much more accurate. I suggest renting a Shield 45 and judging for yourself.
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Old 05-28-2020, 08:21 AM
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Glad to hear its an old problem.

I'm going to buy a new Shield 2.0 .45 today.
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Old 05-30-2020, 08:36 PM
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My Shield .45 also will make some " strange " markings on the brass... but it ALWAYS goes bang when it's supposed to.

I still use the .45 Shield as my EDC and it has been a gem. I have never once wished I had kept my 9mm Shield. I do sometimes wish these little devils had the material and quality build of my previous S&W 659 pistol, but I do NOT miss the heavy beast as far as operational sweetness.
The Shield is actually more accurate and satisfying for ME and FAR nicer to carry. Never had any malfunction type issues at all, even wet and dirty and nasty. My only problem is I don't SHOOT enough these days!
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