Reassembly problem with Shield - HELP!

Armanius

Member
Joined
Apr 14, 2013
Messages
89
Reaction score
21
Hello everyone. Proud owner of a new M&P Shield 9mm. Just got it 48 hours ago. I decided to clean and lube before the first shoot, but cannot for the life of me reassemble the pistol!!! I can't push the slide back far enough to reach the slide lock.

I read the instructions manual, read the other threads, and still cannot reassemble it.

The spring appears to be on the correct position. The yellow lever is pointing down towards the magazine well. The take down lever is pointing down. The slide is sitting on the rail correctly. Everything is well lubed.

But when I push the slide back, it appears that I am literally hitting a wall that is preventing me from pushing another 1/6 of an inch to reach the position where I can push the slide lock upwards.

Prior to the clean and lube work, I was having issues releasing the slide when I did a few dry fires. I never had to push down the slide lock so hard in order to release the slide the forward before. But I'm not sure if the difficulty in releasing the slide has anything to do with the impossibility to now reassemble the pistol.

HELP!!!
 
Register to hide this ad
is the trigger and seer working as it should without the slide?

exactly what was the take down procedure you used?

how far did you take it down?

what parts were removed for cleaning?
 
Last edited:
I had the same issue. The recoil spring wasn't seating correctly.
It was sitting just outside the groove and catching just enough that when I was trying to slide everything back, the recoil rod was sticking out a bit further than the barrel.
 
I had the same issue. The recoil spring wasn't seating correctly.
It was sitting just outside the groove and catching just enough that when I was trying to slide everything back, the recoil rod was sticking out a bit further than the barrel.

This is more than likely the problem. The spring has to be perfectly straight or it will catch on the slide and prevent it from going all the way back. I had the same problem when I first got my 40 shield.
 
Yep, its the spring. Try rotating it 180 degrees

Sent from my ADR6350 using Tapatalk 2
 
This exact issue happened to me a couple days ago when I first disassembled my Shield. I took the slide back off, reseated the recoil spring, and it went back on without a hitch. Seems the Shield recoil spring placement is pretty finicky.
 
Some have had issues with one of the coils on the recoil spring sticking up just enough to cause the slide not to go all the way back. You can try to slightly rotate the recoil spring. Also, the slide lock is just that, a lock. It should NOT be used to release the slide. It says this in the manual. You should pull the slide back and release.
 
I had that problem also. I took it apart again and started over. I'm not exactly sure what was stopping the slide from going all the way back, but after a couple tries, it got past the hangup. The slide lock should loosen up as you use it more. Mine was extremely hard to move, but I was told it would get easier after the gun has had some use. I've worked with mine and it does seem to be easing up. I don't think it has anything to do with the problem of the slide not going back all the way though. I'm sure if you work with it, you'll get it reassembled.
 
I just took mine apart again and got it to act up for me....for the last 20 minutes!!!! Frustrating! But anyway, mine has a test fire of late last month and I think their tolerances might have slipped in the panic. I finally had to force the fat end of the rod end that touches the barrel, into the barrel slightly deeper than the purch it sits on and it worked for me.
 
cut a piece of non-slip shelf liner, place it over the slide, now you can grip the slide and slide it over the frame with no problem!:)
 
Mine does that too. Making sure that the guide rod is in correctly will most likely take care of the problem. If not, rotating the spring 180 will work. I wonder if the spring will relax and straighten out and stop bowing out to the side.
 
Thanks for all the help everyone. I took out and reinserted the spring rotated by 180. And it now works!!! Thank you.

My hands and fingers are SUPER sore sore from struggling with the Shield all day long.

I have one more problem that I could use help with. When the slide is locked into place, the slide lock button is SUPER hard to release -- particularly if there's a magazine in the pistol. I have already developed a bruise on my right thumb pushing the lock button to release the slide. It's so hard that I often use both of my thumbs to bush the slide lock button.

Does the slide lock button soften up over time? I lubed it pretty well along with the slide rail, and it didn't seem to make a difference. I started pulling the slide back first, before pushing the slide lock button. But that seems like an extra step to do. Never had to do that with other pistols.

All help on this additional issue is certainly appreciate. Thank you everyone.
 
Last edited:
Oh, I just saw the last line of Mailman's post about the slide lock being just a slide lock, and that I shouldn't use it to release the slide without first pulling back on the slide. Bummer ... but I suppose I can live with that.

The slide lock on the rental gun I used was much easier to push though ...
 
As mentioned above, the "slide lock" lever is NOT intended as a "slide release."

Pull the slide back manually and move the lock lever down with your thumb.

It may wear in a bit, but it's not intended to work that way, and has been known to break.
 
If the slide is locked back and you rack it, you don't also need to move the lock lever with your thumb...it will release itself.

The Shield is very stiff at first. I inserted an empty mag when it was new, which helped get it reassembled. After several hundred rounds, it loosened up enough to do it without the empty mag.

Enjoy!
 
Same thing happened to me so I re-re-read the FIELD STRIPPING ASSEMBLY instructions and found my problem-see page 24, FIGURE 33/34 of the Safety & Instruction Manual.
 
Slide stop and reassembly

I had the same issue when I first got mine.I actually called S&W and they couldn't help.I finally yanked the slide back as hard as I could a while shoving the frame forward as hard as I could and the slide stop caught.I am far from a weak handed person but the new sheild was so stiff I had just not experienced any semi needing this much force to lock back.Now that I know I don't have any problem.I just have to get a good grip and let'er rip! If you continue to use the slide stop button to release the slide it will get easier, right before it quits working.Use without releasing tension by pulling back on the slide will cause excessive wear to the notch corner in the slide and the sharp edge of the button. It's ok to do it for an emergency reload, but not all the time.Both these issues are due to the heavy recoil springs on these small pistols.
 
Thanks for the info. My right thumb is too sore to ever use any slide release/lock button again!! :)
 
There is no reason not to use the slide lock to release the slide. It shouldn't be super hard unless you have an empty magazine inserted.

Try this, without a magazine in the gun, lock the slide back. Now press on the slide lock. Is it easier?
 
Back
Top