This probably the most embassed moments in my life, 74 years. I just acquired a M&P9 yesterday and was doing basic tear down in semi-dark conditions to see if I could under low light situations, and guess what, I could do the tear down, but with the reassembly the barrel was placed in upside down, and now, I'm looking at a "really" jammed pistol... Having owned a gunshop for 30 years, sold out in 1995, I feel like an idiot. Any, ideas of disassembly to get barrell back in battery.

Thanks, Carl

Don't be upset - could happen to anyone. Impressed that you could got as far as you did in low light. If it were me, I'd spray some CLP in the slide and gently try to wiggle the slide off holding the gun is different positions and tapping it on the side of a table. I would not try to force anything. Eventually you'll get the right combination of gravity and tapping and moderate force to get some movement. I assume the mag is out also. Just my 2 cents. Good luck and soldier on....

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A real sucker for the J-frames

Didn't think that was possible.

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John

So I assume it is locked up enough you can't get the sear take down lever down also? I know there is a way to take the slide cap off and remove the striker to allow the slide to move, just not sure how to do it. Maybe once you get the striker assembly out the slide would move enough. I'm sure someone will be along that knows how to remove the cap.

Slide has to be removed from from to take the striker and end cover cap off.

Ok, I just attempted to duplicate with my M&P45. It looks like you forced the barrel over the locking block. Try this, if the takedown lever is rotated down tap GENTLY on the rear of the slide with a non-marring mallet. The slide should come off. If the takedown lever is up then you will need to get the slide back far enough to rotate it down. If you don`t feel comfortable doing this, then don`t. Get it to a qualified gunsmith.

Oh, yeah, don`t forget to check for empty and then pull the trigger or push down the sear release lever before tapping GENTLY.

Carl,
There must be something in the sunspot cycle this week. I just read about someone else doing this and I tried it myself and you actually can install the barrel upside down!

The good news is you can easily take the slide off again if you simply remove the slide "Glock" style.

1. With an empty magazine in the gun, pull the slide back and lock it
2. Turn the takedown lever to the "down" position
3. Release the slide lock and slowly let the slide go forward
4. When the slide goes all the way forward, pull the trigger
5. Push the mag release button
6. The slide should now go all the way forward and come off the gun

If you don't have a mag safety, you may not need to have a mag in the magwell and you can pull the trigger by itself.

There is just enough of a lip or edge on the top front of the chamber area of the barrel to hold the guide rod. I joined quite a few years ago and lurk more than I post.

I WOULD DO JUST WHAT motorcyclejoe SUGGESTED (GUYS NAMED JOE ARE REALLY SMART….lol), EXCEPT I WOULD SPRAY THE JAMMED AREA LIBERALLY WITH KROIL, AND LET IT SIT OVERNIGHT, BEFORE I BEGAN THE GENTLE TAPPING WITH THE WOODEN HANDLE OF A SMALL HAMMER, OR AN OLD SCREW DRIVER. I WOULD HOLD THE WEAPON IN ONE HAND, ROTATING IT PERIODICALLY WITH REGARD TO THE FORCE OF GRAVITY, UNTIL YOU DETECT MOVEMENT. WIGGLE GENTLY, UNTIL YOU FIGURE OUT THE DIRECTION IN WHICH TO MOVE THE BARREL TO FREE IT. DON'T FEEL BAD. I'M 73 YO. I USED TO BE ABLE TO DISASSEMBLE AND RE-ASSEMBLE A GARAND OR AN M16A1 IN THE DARK. NOW I CAN'T EVEN FIND THE WEAPON IN THE DARK…..

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'Nam 1968-69.DAV,VFW,NRA Inst.

I am a range instructor at my department. Last year, we had a guy do this with the full size M&P 9. Took us a while, but we were finally able to get it undone.

I just made a video on another way to possibly fix it:

Just made a YouTube vid of another way to fix it.

Let me know if you all can see it (so it isn't marked as "private")

Don't feel any worse, I can't find the dark.

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Endeavor to persevere. <><

Great video. Well done, and said.

FWIW, the "similar thread" at the bottom of the page titled "barrel upside down" has posts by 4 or 5 people who did the same thing. One post from Dtrac states, as to an MP 40 " Long story short I slid the slide back a little and on the right side of the gun between the slide and body you will see a silver looking bar. I took a piece of thin wood and moved it to the rear and the slide came off, installed the barrel in correctly and works fine."

I still don't understand where the RSA was, but excellent video rocket.
Makes it look easy.

LMAO,Shooting Padre. IT JUST GOES TO SHOW THAT THINGS COULD ALWAYS GET WORSE…..
…...

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'Nam 1968-69.DAV,VFW,NRA Inst.

YOUR RIGHT, MUSS MUGGINS. I LOOK AT IT THIS WAY. CARL HAS BEEN A MEMBER FOR 9 YEARS, AND HE HAS NEVER HAD TO ASK FOR HELP BEFORE. HE CAN'T BE ALL THAT STUPID…..

HE CAME HERE HUMBLY ASKING FOR HELP. HE HAS ALREADY STATED THAT HE'S EMBARRASSED. IMHO, ITS NOT IN THE SPIRIT OF THIS FORUM TO RIDICULE ANYONE SEEKING INFORMATION. HOW OFTEN HAVE WE INVITED NEW MEMBERS TO FEEL FREE TO ASK ANY QUESTIONS THEY WISH--NO MATTER HOW SIMPLISTIC ? ? ? I OFTEN DO IT MYSELF…..

I SOMETIMES LOSE PATIENCE WITH STATEMENTS MADE TO ME, BUT I THINK THAT WE (ME INCLUDED) NEED TO TRY TO TREAT EACH OTHER WITH MORE KINDNESS. JUST MY 2 CENTS……...

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'Nam 1968-69.DAV,VFW,NRA Inst.

I meet people all the time who are afraid to join in on forum discussions. They are concerned that they'll ask a question and get ridiculed rather than helped. This is a perfect example of why they don't post.

The guy made a mistake and asked for help. The video may have helped, but was remarkably insulting. Then several other members piled on. We all have our days. I hope none of you ever need help in the future.

I tried to get my 45 barrel in upside down, but it won't fit. I hope the OP is able to get his fixed up.

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Freedom isn't free.

Rastoff is right: OP had the courage to ask, let's respect that and help if we can.

I've had some disassembly - reassembly disasters too.

Years ago I decided to completely disassemble my Remington model 1100 shotgun. Couldn't get the bloody thing back together.

I was at my gunsmith's front door at 9:00 pm with a paper bag full of gun parts. When he stopped laughing, he invited me in for a beer and told me I wasn't the first.

That was the kindest thing he could have said.

Forty five minutes later, I was on my way home with my reassembled shotgun.

Agree, the OP had only bought the M&P yesterday and I would think we've all jammed up slides on new guns one way or another. I once caught some range clown trying to jam the barrel of my Sig into my M&P and vice versa.

Well said.

Y'all play nice, or we won't be having cookies after recess.

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Regards,
Lee Jarrett

Chill baby. I clearly said jk in the comment section. I wouldn't have bothered making the video if I didn't want to help. For the sensitive types, I'll put in an explicit disclaimer so as to be PC and not hurt any feelings OK?

Thanks ever so much for your help. I used the Glock method, and it worked. From over 30 years of owing a gunshop, I found a long time ago, if you have to force it: It isn't right. And, with the internet for what it is today, why, spend 3 days wondering how, when someone, somewhere has already experienced the happening. Anyway, thanks

Thanks for the "kind" words.

We have cookies here?
Make mine oatmeal raisin.

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What would Jim Cirillo do?

NOW DON'T YOU BE A STRANGER, csanders41. HAVING OWNED A GUN SHOP FOR OVER 30 YEARS, I'M CERTAIN THAT YOU HAVE MUCH TO CONTRIBUTE TO THIS FORUM………...

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'Nam 1968-69.DAV,VFW,NRA Inst.

You're welcome Carl. I enjoy experimenting and solving problems. Your post was the second one of the same nature in one week. When I saw the first thread with all the nay sayer comments stating that it was impossible or that it was a troll or Photoshop, I had to see for myself if it was possible. With some gentle persuasion, I was able to duplicate the setup and find the solution.

At first, the striker wasn't cocked and the internal takedown lever was not lowered so I nearly panicked. But by pulling the slide back 1" and doing the "Glock" disassembly, the slide came off. Yesterday, I repeated the test, but this time set the recoil spring to fall off the lip of the hood. The slide would not come off unless the barrel was not locked into battery. Putting the screwdriver (or a popsicle stick) between the barrel and breechface kept the barrel unlocked and allowed the slide to come off by itself when the slide moved forward.

In the video, this time the internal sear release lever was in the down position so the slide simply came off when I released the slide lock lever.

Glad to have helped and no offense intended with the sarcastic humor. It was a line similar to a joke about a Compaq call service helper who once told a customer to pack up the computer, send it back and never buy another computer again, "people like you should never own computers". It was his last call before getting fired.

Cookies? Did someone say cookies? I think I earned one because I kept my nose out of this. Now all I can say is congratulations for heeding advice & IT WORKED! I'm super glad for you & I'll bet you'll never make that mistake again. It could have happened to me last week when I came home from the range & was cleaning my 40C. Got a phone call in the middle of reassembling it & good thing I looked down - the barrel was upside down! Now I double check by eye & by feel. Must have had the thing apart a thousand times & I should have known better. I thought I could do it Army-style blindfolded.

Now to get my reward. My daughter just baked chocolate chip cookies & if my grandsons haven't devoured them by now I'll claim mine, lol.

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Former USN, Retired US Army

*
Probably Recoil Spring Assembly.

BTW: for all, please remember that the worst enemy most of us have is in the mirror. The guy in mine can and has done some of the dumbest darned things.

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NHI, 10-8.

Doug,
Thanks. I knew what the RSA is, I couldn't understand where it would go.
I see now that there's a small lip on the top of the barrel. I've done some really mysterious stuff putting mine back together also, there's nothing to be embarrassed about.

I mis-read. I thought you said "what". My bad. See?

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NHI, 10-8.

New gun owner here and I just did the same thing first time re-assembling my S&W M&P 40. Felt so stupid and immediately began to imagine the embarrassment of having to ask for help at my range. Fortunately, this solution worked like a charm! Thanks so much. Also glad to know I'm not the only one in history to do something so stupid!

Turning the barrel over will not correct shooting low left.

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USN Retired/VN VET
M&P X5

Hey, resurrected thread. I once benefited from such a move. I got a great deal on a pistol that had the guide-rod laser installed upside-down. It would not line up with the sights and was not adjustable. I discovered the issue after I got it home. I called the Mfr. and was advised to spin it. Perfect.

Actually it would, considering the pistol wouldn't shoot at all in that configuration.