Shield Locking Block Coil Pin Walking Out!!!

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B/STOCK

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The Locking Block Coil Pin walks out of my Shield 9mm & .40. Is this a common thing on the Shield? I noticed on my 2 full size M&P .45s there were spare pins in the envelope that held the fired shell casing. Should I Loctite them, replace them or sent the pistols back to S&W? Does anyone else have this problem and if so what is the fix. Thanks, Mike
 
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I bought two Shields and have not noticed this so far. Try this, remove the pin and place it on a piece of masking tape and fold it over. Mark the middle of the pin, place the pin on a hard surface and put a flat punch on the mark and smack it on each side. This will put a flat spot in the pin that should keep it from walking out.
 
I'd be hesitant to flat-spot the pin - that could create a small scratch or channel inside the pin bore, which could lead to problems later on.

I've had success with roll pins by lightly tapping on the ends of them with a center punch. That will open them back up a little and make for a tighter fit inside the whole ID of the bore.
 
To the OP, how far are they walking out and how many rounds does it take? Pics?

They should have used solid pins IMHO.

Edmo
 
Mine too. Called S&W. They said take the pin out and take a center punch and punch both ends of the roll pin then insert it back in. I said I want a new one. They charged me for one but it never arrived. So, I did what the S&W guy said. It's never moved again.
They also never sent the front sight I paid for.
I need to give them a call.
Rob
 
Hillbilly77 said:
I've had success with roll pins by lightly tapping on the ends of them with a center punch. That will open them back up a little and make for a tighter fit inside the whole ID of the bore.
Click to expand...
_______________

SpringGunTunes said:
Mine too. Called S&W. They said take the pin out and take a center punch and punch both ends of the roll pin then insert it back in.
Click to expand...

This sounds familiar. :D


SpringGunTunes said:
So, I did what the S&W guy said. It's never moved again.
Click to expand...

;) :D
 
Edmo said:
To the OP, how far are they walking out and how many rounds does it take? Pics?

They should have used solid pins IMHO.

Edmo
Click to expand...



They walk out about a eighth of a inch after 20 rounds. Also is there any trick in removing & replacing the pins. I had a Grand totally stripped and could not get one pin in. Turned out the pin was unidirectional and if I had tried to force it in the opposite direction it would have damaged the furniture on the rifle. It was a CMP collectors rifle so if I had damaged it the worth would have gone way down. This is why I always ask questions about pins.
 
B/STOCK said:
They walk out about a eighth of a inch after 20 rounds. Also is there any trick in removing & replacing the pins. I had a Grand totally stripped and could not get one pin in. Turned out the pin was unidirectional and if I had tried to force it in the opposite direction it would have damaged the furniture on the rifle. It was a CMP collectors rifle so if I had damaged it the worth would have gone way down. This is why I always ask questions about pins.
Click to expand...

The M&P pins are straight. They are not tapered.
A regular punch and ball pein hammer will remove/install the pins, and the aforementioned center punch trick will spread them open a bit.
 
Last edited:
Can I take the pin out without disassembling any other part of the pistol? Is it just knock the pin out do my thing and replace it?
 
B/STOCK said:
The Locking Block Coil Pin walks out of my Shield 9mm & .40. Is this a common thing on the Shield? I noticed on my 2 full size M&P .45s there were spare pins in the envelope that held the fired shell casing. Should I Loctite them, replace them or sent the pistols back to S&W? Does anyone else have this problem and if so what is the fix. Thanks, Mike
Click to expand...

It is NOT common. Absolutely NO loctite should be used. Send to S&W with description. My advice is to leave the pin hanging out the side of the frame when you send it in to S&W. Or, send a picture along with the pistol.
 
B/STOCK said:
Can I take the pin out without disassembling any other part of the pistol? Is it just knock the pin out do my thing and replace it?
Click to expand...

Drive the pin out with a punch (most likely a 1/8" punch).
Nothing should blow apart on you.

If you are worried about it, simply leave the punch in there while you spread the roll pin.

I wouldn't waste time with shipping it back to S&W.
Do the center punch trick, re-install the pin, and go enjoy your gun. ;)
 
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