M&P Shield Striker block failure.

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obiwankabaldi

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While cleaning my new shield I noticed that the striker (firing pin) can move forward without depressing the block. If I push the striker back then the round pin does stop it but under it's own force the striker does not engage the block. I can see this as a possible chance for the gun to fire if dropped. Anyone seen this and know the fix or do I need to send it back. I have multiple M&P's and never had a single problem......
 
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The proper way to test is to pull the striker back then push. Does it work then?
 
Call Smith & Wesson and ask if you can speak to somebody in the tech department about this matter: 1-800-331-0852
 
Push the striker back slightly. Press and release on the blocker and it should move in in out freely. With the blocker out, push the striker forward and the blocker should block the end of the striker from entering into the breech face. If so, all is working correctly. If the striker tip can enter past the breech face, then the blocker is not working correctly and needs to be fixed.

Contact S&W for warranty repair

If the striker blocker is sticking or not moving in and out freely, and you don't want to send it back, check this video out:

M&P Pistol Gritty Trigger Pull -- Striker Blocker Fix - YouTube

Bob
 
If the striker is not cocked, yes the firing pin can move forward. Once cocked the blocker will do what its name sake is.

You can't have an uncocked M&P and a live round in the chamber. At least I never found a way to do it. So it is a safe system when condition one against AD from a drop

Sent from my SCH-I605 using Tapatalk 2
 
If I push the striker back first then the block engages and the striker can not go forward. But at any other time if I do not pull the striker back first the striker can go forward..
 
obiwankabaldi said:
If I push the striker back first then the block engages and the striker can not go forward. But at any other time if I do not pull the striker back first the striker can go forward..
Click to expand...

Then everything is good. You will never have a condition with a loaded chamber and the striker not cocked and subsequently blocked by the blocker. My 40c is the same way...

Sent from my SCH-I605 using Tapatalk 2
 
All of my other M&P pistols, (2) 9 compacts, 1 FS 9 and one 45 compact all pass the striker block test. The shield is the only one that needs to be pushed back to engage the block. Seems weird.
 
Thanks for posting this. My 9mm Shield acts just like Obiwankabaldi and I thought I might have to send it back. If I also push the firing pin back first, it clicks and cannot be pushed forward.
 
obiwankabaldi said:
All of my other M&P pistols, (2) 9 compacts, 1 FS 9 and one 45 compact all pass the striker block test. The shield is the only one that needs to be pushed back to engage the block. Seems weird.
Click to expand...

Probably due to the shorter length of the slide.
 
Thanks for all the help. I am a S&W M&P guy. I have tried glocks, XD's and Sigs. Ended up with my M&P's and never looked back. Been really happy with them and hated the idea of having to send it back for repair.
 
I had the same experience with my new shield. I actually did send it back to S&W. They returned it along with a note explaining it was perfectly fine and I was doing the safety check incorrectly.

You must first "cock" the striker and then ease it forward. If the striker block prevents the striker from exiting the breech all is well.

And yes, my FS9 is different. It doesn't need to be "cocked". Just a disassembly and the striker is blocked.
 
S&W customer service once told me the Shield's striker has to be pushed back slightly when testing the striker block safety. Make sure you also push the striker block safety at an angle (from the angle the trigger pushes it in) to test for substantial grittiness that can cause that safety to get stuck in the up (unsafe) position. That was the problem with mine.
 
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