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Discussion Starter #1
Not sure if this is the right spot or not, and I know the topic may have been brought up before but .....

When I insert a loaded mag into my M&P9 the slide shots on it and chambers a round . It sounds gresat at firsr, but I wondering if there is any chance of a slam fire or and AD ( keep in mind that my finger is way off the trigger and out of the gaurd.

Canada
 

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The trigger must be pulled to move the firing pin block and release the sear. Not much different than a Glock. Unless you have a failure with either I would say the chances of a slam fire are extremely slim.
 

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I dont see a slam fire happening b/c the firing pin plunger/safety holds the firing pin from being sent forward unless the trigger is moved. When the trigger is pulled, the tab on the trigger bar moves the firing pin plunger/safety up/ out of the way and lets the firing pin move.



A few guns have that by design (having the slide drop on a loaded mag from empty). Some of our dept guns do this, others do not. No biggie.
 

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The only risk of a slam fire would be if you managed to ge the striker wedged forward. Like stuck in the firing pin hole by some foreign object. And you'd have the exact same issue that way or if you dropped the slide by hand.



Even if you pulled the firing pin safety out, I doubt it has enough inertia to get the job done. Wouldn't recommend you find out though.
 

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Discussion Starter #5
Thanks for the replies guys. Puts my mind at ease. Do all M&P's do this or is it just some of them ?
 

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Alot of M&P pistols do that and alot glocks too. So its fairly common, and S&W said it is not a flaw. Alot of people like that added feature. As for me mine does it only when I slam a mag in hard. I usually dont think about it.
 

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I have noticed this as well. I assumed this was a problem with the magazine releasing the first round. Only happens when I slam a clip in, but still has me a little worried.
 

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If it happens on a regular basis, I would contact S&W.

There were some problems with the slide lock in earlier production.



There is no way that I want my handgun chambering a round by just

inserting a magazine.



IAShooter
 

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I have never had the slide drop when inserting a magazine unless I slammed it in. Even then you can't depend on it dropping the slide.
 

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I don't think that's normal, nor acceptable.



Either the slide stop engagement area is worn, or the cut in the slide is worn. I'd put money on the former.



I've seen more than a couple M&P's that had slide stops that were WAY too hard to release via the slide stop. Even when polished and lubed up, they were still way too hard.



They weren't as bad as the Taurus Milenium Pro's tend to be, but it seems that the slide stop is one of the quirkier parts on the M&P.
 

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Mine did it from the first day I had it. I have to slam the mag in pretty good for it to happen and it doesn't do it all of the time. I asked a few people at the range if it was okay and they all looked at me like I was crazy for asking.
 
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