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Old 02-27-2017, 03:01 PM
Steve_C Steve_C is offline
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New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back.  
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Default New 9mm M&P Shield - slide getting jammed back.

Hi All, I am new to these forums, I just picked up my first S&W pistol yesterday. For a CCW, I chose the 9mm M&P Performance Center Shield. I ran about 250 rounds through it at the range and I had at least a dozen instances where the slide got stuck fully back after firing. The casing was fully ejected and the slide was fully back. There was no slack in the slide to pull it back and "sling shot" it forward, I was able to get the slide to move forward by slamming the rear of the slide with my left palm.
I used 2 different target 9mm ammo (I think both were in the 115gr range). I have used this ammo without a problem in other pistols, so I don't think that is the problem.

I emailed S&W and opened a ticket yesterday, I was just wondering if anyone else had a similar issue with their pistol and if so, what was the solution.

Thanks in advance,

Steve
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Old 02-27-2017, 03:24 PM
jtaylor996 jtaylor996 is offline
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New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back.  
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There's a lot of that going around, to be honest. Not on the one I bought a couple of months ago, but there seems to be a bad batch out there.
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Old 02-27-2017, 03:28 PM
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New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back.  
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I've seen a few threads on this: Google

Did you clean it before firing? What kind of ammo? I'd say you did the right thing by calling S&W - hopefully they'll sort it out quickly.
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Old 02-27-2017, 03:41 PM
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New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back.  
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hi OP, was the gun cleaned/lubed as needed before it's first trip (in case something in its original coating was causing the slide issue)?

I have 850+ trouble free rounds now thru my PC Shield; just noting it as i only use 115fmj new brand-name ammo which has been fine for me and my Shield.
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Old 02-27-2017, 03:46 PM
Steve_C Steve_C is offline
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I did not fully clean it prior to going to the range, I was too excited to try it out. When I got home I did clean it. I am going to try to make it back to the range later this week and see if I still have the problem.
Thanks for all the quick replies.
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Old 02-27-2017, 04:22 PM
gqllc007 gqllc007 is offline
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New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back.  
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Looks like it's the barrel is an issue
Shield 9 slide jammed back
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Old 02-27-2017, 04:48 PM
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Hate to hear this problem again.

There's been a rash of that problem with Shield's posted on the forum lately. Might browse through the section to see what others are doing to resolve it.

Good luck and please let us know what gets it resolved.
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Old 02-27-2017, 10:30 PM
yep380 yep380 is offline
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Does it seem like this is more common w/PC shields than standard ones?

I just ordered a standard in 9mm. I'm sure it'll be fine... I do hate reading about people having problems just after I ordered a gun though.
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Old 02-27-2017, 11:15 PM
JVSIII JVSIII is offline
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New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back.  
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Here's another, there's at least one more I saw as well.

Brand New Performance Center Sticking Open (out-of-battery to the rear)!

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Old 02-28-2017, 12:03 AM
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Default Be careful to.....

Be careful to set the spring and rod back in the notch exactly. I can't believe i was messing up here, but I had a rash of the slide locking back and VERY difficult to return forward. Someone mentioned to be careful about putting the spring and rod back in. I haven't had any trouble since. I can't imagine myself not putting a spring back in right, but maybe that was it.

At one point I did have the barrel in the Shield replaced due to a short leade, but I can't tie that in with the locking back problem


I had a Kel Tec that the spring would jump across the barrel notch and lock up the works. The factory said that was a known problem. They had to disassemble the thing but it works now.

.
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Old 02-28-2017, 01:07 AM
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Hope you folks get the Shield going. It is too much fun to be having these problems.
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Old 03-02-2017, 10:49 AM
Steve_C Steve_C is offline
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New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back.  
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Default It's alive!!

After thoroughly cleaning and lubing the shield, I was able to put around 200 rounds through it last night without having the slide get stuck. There was one instance where it felt like the slide didnt slide smoothly, but it didn't get jammed. I won't be making this my CCW anytime soon, I need to get a lot more confidence in it.

Maybe this is a combination of a break-in issue as well as grease residue from the factory. I am planning on heading back to the range this weekend to put it through the paces again. Wish my luck!

Thanks everyone for the tips and suggestions.
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Old 03-02-2017, 02:59 PM
Rvtraveler100 Rvtraveler100 is offline
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New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back.  
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Quote:
Originally Posted by Steve_C View Post
Hi All, I am new to these forums, I just picked up my first S&W pistol yesterday. For a CCW, I chose the 9mm M&P Performance Center Shield. I ran about 250 rounds through it at the range and I had at least a dozen instances where the slide got stuck fully back after firing. The casing was fully ejected and the slide was fully back. There was no slack in the slide to pull it back and "sling shot" it forward, I was able to get the slide to move forward by slamming the rear of the slide with my left palm.

I used 2 different target 9mm ammo (I think both were in the 115gr range). I have used this ammo without a problem in other pistols, so I don't think that is the problem.



I emailed S&W and opened a ticket yesterday, I was just wondering if anyone else had a similar issue with their pistol and if so, what was the solution.



Thanks in advance,



Steve


Ditto. New January 9th, jammed on first use, the dealer replaced the spring, jammed again, they shipped it back to S&W on February 14th.


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Old 03-02-2017, 06:17 PM
pakettle pakettle is offline
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I have had my 9mm shield for over a year and 700 rounds through it, only problem I have is racking that slide. That puppy is strong!
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Old 03-04-2017, 10:13 AM
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Default No issues with my new M&P9 PC

Put about 100 rds through my brand new M&P 9 PC Shield with no issues. I did clean and oil (7 oiling spots per the manual) prior to going to the range. The only issue I had was sore thumbs from loading the magazines- those are some heavy duty springs! Getting that 7th and 8th rd into the new magazines was a chore at first. I also noticed that the barrel around the ports tends to get really dirty/gritty, so be sure to clean those religiously.
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Old 03-04-2017, 01:36 PM
gqllc007 gqllc007 is offline
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Quote:
Originally Posted by Hawg Rider View Post
Put about 100 rds through my brand new M&P 9 PC Shield with no issues. I did clean and oil (7 oiling spots per the manual) prior to going to the range. The only issue I had was sore thumbs from loading the magazines- those are some heavy duty springs! Getting that 7th and 8th rd into the new magazines was a chore at first. I also noticed that the barrel around the ports tends to get really dirty/gritty, so be sure to clean those religiously.
Your mag springs might be bent. Replace them with MagGuts +1 or Wolf Springs if you don't want one extra round
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Old 03-04-2017, 03:07 PM
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We think we have discovered the cause of this. During testing with some of our Shield barrels we had a couple stick back in the same position that all these threads have mentioned. Lots of different solutions and speculation and many had sent theirs in to be repaired. The problem we experienced that replicated this exact problem (slide stuck past slide lock and had to "smack" to go back into battery) was that the "neck" of the barrel before the squared chamber had too much meat on the left and right sides where it was pinching. This caused the barrel opening in the front of the slide to grab it when at "full recoil" past the slide lock. Some pistols did it and others didn't depending on if the barrel was too fat, or if the metal wore enough and "smoothed" itself out after it wore a bit. we adjusted our barrels to remove this extra width at that point and have never experienced another hang up. Will post pics in a bit of where the barrel is catching to show.
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Old 03-05-2017, 12:44 AM
thomast thomast is offline
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Pic is great. I have been wondering about this a lot. I though e binding would be at the locking block not where you seem to be describing...

Quote:
Originally Posted by True_Precision_Inc View Post
We think we have discovered the cause of this. During testing with some of our Shield barrels we had a couple stick back in the same position that all these threads have mentioned. Lots of different solutions and speculation and many had sent theirs in to be repaired. The problem we experienced that replicated this exact problem (slide stuck past slide lock and had to "smack" to go back into battery) was that the "neck" of the barrel before the squared chamber had too much meat on the left and right sides where it was pinching. This caused the barrel opening in the front of the slide to grab it when at "full recoil" past the slide lock. Some pistols did it and others didn't depending on if the barrel was too fat, or if the metal wore enough and "smoothed" itself out after it wore a bit. we adjusted our barrels to remove this extra width at that point and have never experienced another hang up. Will post pics in a bit of where the barrel is catching to show.
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Old 03-05-2017, 12:08 PM
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Originally Posted by thomast View Post
Pic is great. I have been wondering about this a lot. I though e binding would be at the locking block not where you seem to be describing...
Will get some when back in the shop Monday. We first believed it had something to do with the design of the lug/locking block....nope. It corrected every barrel that was experiencing this when we adjusted the width at the point Im referring to. The barrel will be ridged when it is stuck back (as others have described) but it is not the locking block/lug but a clearance issue with the front of the slide opening for the barrel and the barrel "pinching" at full extension. It will explain/show a lot when we get some pics up.
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Old 03-05-2017, 12:44 PM
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Originally Posted by Hawg Rider View Post
Put about 100 rds through my brand new M&P 9 PC Shield with no issues. I did clean and oil (7 oiling spots per the manual) prior to going to the range. The only issue I had was sore thumbs from loading the magazines- those are some heavy duty springs! Getting that 7th and 8th rd into the new magazines was a chore at first. I also noticed that the barrel around the ports tends to get really dirty/gritty, so be sure to clean those religiously.
Not on topic but I have to agree: The springs in both the slide and mags are very tough hombres. Not very fun after a few loads at the range. My wife can't use the Shield because of it and we're a bit disappointed by this. She wants a Glock 43 after a free rental.

I also find that the mags need a real slap to seat when they are loaded. It could be a game changer in a stressful encounter. My old Colt Hammerless .380 and every other semi auto I've ever owned are very supple by comparison.

I realize the Shield is a cheap gun, but jeez...
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Old 03-06-2017, 12:44 PM
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The points which cause the hangup are pointed out in the below pics. The inside of the slide as well as the small point on the barrel shown are too tight. This has caused the metal on the inside of the slide to mishape (the barrel also has smaller marks as shown where it is catching). The barrel we believe is a bit more hard than the slide causing the slide to show more wear. This was also demonstrated in some of our early barrels and we corrected that area of the barrel shown from the factory. Ours do not catch now.
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Old 03-06-2017, 05:40 PM
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Great post, thanks
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Old 03-06-2017, 08:08 PM
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Quote:
Originally Posted by True_Precision_Inc View Post
The points which cause the hangup are pointed out in the below pics. The inside of the slide as well as the small point on the barrel shown are too tight. This has caused the metal on the inside of the slide to mishape (the barrel also has smaller marks as shown where it is catching). The barrel we believe is a bit more hard than the slide causing the slide to show more wear. This was also demonstrated in some of our early barrels and we corrected that area of the barrel shown from the factory. Ours do not catch now.
So all your new Shield 9 barrels that are non threaded have that fixed? How is your chamber? Can you carry with this barrel? I have a PC that I wouldn't mind changing the barrel as long as it would be reliable enough to carry with. My stock barrel is very accurate. I have a non ported shield factory barrel but it's not as close to accurate as the stock ported barrel. Both oem barrels have functioned 100%
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Old 03-06-2017, 08:41 PM
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Originally Posted by gqllc007 View Post
So all your new Shield 9 barrels that are non threaded have that fixed? How is your chamber? Can you carry with this barrel? I have a PC that I wouldn't mind changing the barrel as long as it would be reliable enough to carry with. My stock barrel is very accurate. I have a non ported shield factory barrel but it's not as close to accurate as the stock ported barrel. Both oem barrels have functioned 100%
Both our threaded and non-threaded have the fix at this point. Our barrels are fully supported match barrels we have ran a good variety of ammo through them to include good amounts of Gold Dot and HST with great results in both accuracy and reliability with the ammo. Especially after the adjustment to the barrel. At this point they run flawlessly. Our machinists are amazing and the Concentricity of the bore (ID to OD) is one of the most important things to us and is huge when threading a barrel for a suppressor. The blanks are bored and rifled by a company that has produced barrels/blanks for several companies that are considered "high end" pistols and are well known.
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Old 03-07-2017, 10:43 AM
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Quote:
Originally Posted by True_Precision_Inc View Post
Both our threaded and non-threaded have the fix at this point. Our barrels are fully supported match barrels we have ran a good variety of ammo through them to include good amounts of Gold Dot and HST with great results in both accuracy and reliability with the ammo. Especially after the adjustment to the barrel. At this point they run flawlessly. Our machinists are amazing and the Concentricity of the bore (ID to OD) is one of the most important things to us and is huge when threading a barrel for a suppressor. The blanks are bored and rifled by a company that has produced barrels/blanks for several companies that are considered "high end" pistols and are well known.
Ok I took your word for it and ordered a DLC coated non threaded barrel. Order number #00040
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Old 03-07-2017, 12:20 PM
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Originally Posted by Steve_C View Post
I did not fully clean it prior to going to the range, I was too excited to try it out. When I got home I did clean it. I am going to try to make it back to the range later this week and see if I still have the problem.
Thanks for all the quick replies.
That may very well have been the issue. They are shipped in a packing grease that is not a lubricant.

I'm not saying that the other issue isn't happening either. But until you have a chance to test it out under operating conditions, it's one solution at a time.
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Old 03-08-2017, 11:09 PM
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Quote:
Originally Posted by True_Precision_Inc View Post
The points which cause the hangup are pointed out in the below pics. The inside of the slide as well as the small point on the barrel shown are too tight. This has caused the metal on the inside of the slide to mishape (the barrel also has smaller marks as shown where it is catching). The barrel we believe is a bit more hard than the slide causing the slide to show more wear. This was also demonstrated in some of our early barrels and we corrected that area of the barrel shown from the factory. Ours do not catch now.
Good stuff!
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Old 03-08-2017, 11:25 PM
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Default The stuff they ship guns with.....

......is sticky preservative, not lubricant. You gotta clean all that mess out. It's not as bad as cosmoline that they used to pack up rifles for years, but the idea is the same.
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Old 03-09-2017, 08:14 PM
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New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back.  
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Originally Posted by True_Precision_Inc View Post
The points which cause the hangup are pointed out in the below pics. The inside of the slide as well as the small point on the barrel shown are too tight. This has caused the metal on the inside of the slide to mishape (the barrel also has smaller marks as shown where it is catching). The barrel we believe is a bit more hard than the slide causing the slide to show more wear. This was also demonstrated in some of our early barrels and we corrected that area of the barrel shown from the factory. Ours do not catch now.
Those points are where I see some machining from S&W on my 9mm shield that was recently sent in for repair due to the slide locking back during firing. The machining removed the black coloring of the barrel and the slide - should I be concerned about any enhanced susceptibility to corrosion?
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Old 03-10-2017, 12:52 AM
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Originally Posted by vicikid62 View Post
The machining removed the black coloring of the barrel and the slide - should I be concerned about any enhanced susceptibility to corrosion?
No. They are both stainless steel.
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Old 03-17-2017, 07:59 PM
thomast thomast is offline
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New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back. New 9mm M&P Shield - slide getting jammed back.  
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This should be a sticky. It's a good fix
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Old 04-02-2017, 02:25 PM
Jimboy Jimboy is offline
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Default New 9mm Shield Issue

Looking for some help with a shield issue. On 2 separate occasions my 9mm M&P Shield failed to reset the stricker. The shell rejected and a new round was loaded but all I could do was press the trigger and nothing happened. 1st time about a month ago with Winchester target happened only once. Second time about a week ago with Remington. Gun is about year old and have had no problems before this.
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Old 05-12-2017, 09:14 AM
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Quote:
Originally Posted by Jimboy View Post
Looking for some help with a shield issue. On 2 separate occasions my 9mm M&P Shield failed to reset the stricker. The shell rejected and a new round was loaded but all I could do was press the trigger and nothing happened. 1st time about a month ago with Winchester target happened only once. Second time about a week ago with Remington. Gun is about year old and have had no problems before this.
Sounds like the slide isn't going fully into battery. That will cause what you described to happen. If it occurs again pay close attention to the back of the slide and see if you can push it forward at all with your thumb...even just a hair movement forward means that it is not in full battery. This will cause the striker not to reset. There may be an obstruction somewhere preventing the slide from going forward or it could be bad/out of spec ammo/damaged case, etc keeping the round from chambering.
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Old 05-14-2017, 09:13 AM
jim46ok jim46ok is offline
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Originally Posted by Steve_C View Post
I did not fully clean it prior to going to the range, I was too excited to try it out. When I got home I did clean it. I am going to try to make it back to the range later this week and see if I still have the problem.
Thanks for all the quick replies.
To quote my old bootcamp commander..."a new article is a dirty article." One should ALWAYS clean a new firearm before firing. Issues such as a piece of milling debris, etc. present could damage the bore, sear, etc. JMHO
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Old 05-14-2017, 09:17 AM
jim46ok jim46ok is offline
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Originally Posted by pakettle View Post
I have had my 9mm shield for over a year and 700 rounds through it, only problem I have is racking that slide. That puppy is strong!
Storing it with the slide back can take a little tension off....usually.
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Old 05-16-2017, 02:17 PM
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Getting back to the original problem ... I have a new (~500 rounds) Shield 9mm CA model that has had the slide jammed passed slide lock once on about round 400. Once in 400 rounds is too many times for a CCW IMO. I called S&W and they promptly gave me an RMA. After waiting 1.5 months I received my weapon back yesterday with a note simply saying the problem could not be replicated and no action was taken. This is BS, and I am in a bit of a quandary as how to proceed at this point. It also guarantees I won't purchase another S&W.

Having read all the reports in this forum and others and I am convinced that there is a definite issue and S&W must be aware of it. Somebody mentioned a possible tooling issue above which makes sense as this is a relatively recent problem.

I think True_Precision_Inc might be onto something, but I inspected my barrel and slide and can't see any marks, but it only jammed once so far. It seems like the cleaning/lubrication fix is suspect, I just measured the recoil spring force at 9 lbs initially, and 13 lbs at full compression which is a lot.

Any suggestions? Can the slide and barrel base be safely ground in polished a bit in those areas indicated in the above pics?

Thanks for any help!
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Old 05-16-2017, 10:11 PM
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I am having the same problem. I started a thread on it above. I did note that when the slide sticks the barrel is fixed and has no "play" in it like it would when it is locked rearward by the slide lock. 10 weeks for a carry permit. Now another possibly 6-7 weeks to get this looked at. Not happy. Mine is sticking often enough that I have no doubt they will be able to replicate the problem though. Can barely get through a magazine without it happening.
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Old 05-16-2017, 10:25 PM
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I realize that nothing mechanical is perfect and anything that can go wrong will. My concern is that S&W doesn't seem to know what's happening with there 9mm Shield. New 9mm M&P Shield - slide getting jammed back.

Luckily for us the folks over at True Precision have been gracious enough to help us out.

THANK YOU True Precision New 9mm M&P Shield - slide getting jammed back.


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