I have noticed my stide won't automatically close with a loaded mag consistently...not sure if I'm doing something wrong or if something may be wrong with the gun...The mags are s&w brand and factory ammo ... it works about 50/50 I jamm it in pretty hard too and it's not working then too...any advice?
slide closing
- Thread starter WVBassFan
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Murdock
Member
I don't believe that slide closing upon insertion of the magazine is an intended feature of the M&P line.
Like yous, my .45 sometimes would, and sometimes didn't. If, like me, you are used to sending the slide into battery by pulling and releasing the slide with the support hand, this sometimes caused me to eject a round that had been loaded into the chamber 'cause the slide had fooled me by going forward automatically.
Anyway, it ain't nothin' you're doing wrong.
Like yous, my .45 sometimes would, and sometimes didn't. If, like me, you are used to sending the slide into battery by pulling and releasing the slide with the support hand, this sometimes caused me to eject a round that had been loaded into the chamber 'cause the slide had fooled me by going forward automatically.
Anyway, it ain't nothin' you're doing wrong.
AR-Getsome
Member
My advice. Don't slam the magazine in. Insert magazine, slingshot the side by pulling the side to the rear and let go. Do not ride the slide, just let it go. If you want to"auto forward" the side, keep slight pressure on the side lock when inserting the magazine with slight force, the inertia of the upward force of the magazine and slight pressure on the side lock will chamber a round. Of course when you do this, keep the pistol pointed in a safe direction while keeping proper finger discipline. I take it that your pistol is new?
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RobzGuns
US Veteran
As Murdock wrote, the slide closing with mag insertion is not an intended 'feature'. It's not malfunctioning and you're not doing anything wrong.
If you want consistency, perhaps use less force during insertion.
If you want consistency, perhaps use less force during insertion.
Bkreutz
US Veteran
You never mentioned which M&P you have. The auto forwarding of the slide depends a great deal on the weight of the magazine. On my full sized pistols, I get consistent slide drops when using fully filled 17 round magazines, but when they're downloaded to 10 rounds, it's very inconsistent but mostly the slide won't drop. On a compact, I can't get the slide to drop no matter how hard I insert the mag. (that could also be that I have many more rounds through the full sized pistols so they may be a lot "looser" than my compacts).
MyDads38
Member
I've never had this happen with any gun, not even my new SD9VE. If it WERE to happen, I'd have to send it in to have it looked at. I for one, do not want this to happen, by accident or on purpose.
I am wanting to purchase both the M&P 9 and 45, but I would not want this to be a "feature" of the gun. If this happens on most guns, on anything like a regular basis; then maybe I should rethink the M&P purchase.
I am wanting to purchase both the M&P 9 and 45, but I would not want this to be a "feature" of the gun. If this happens on most guns, on anything like a regular basis; then maybe I should rethink the M&P purchase.
Bkreutz
US Veteran
I have to ask, when you put a loaded magazine into a pistol with the slide locked back, what else would you do except release the slide to strip and load a live round into the chamber? If you don't want to have a live round loaded, don't put the magazine into the pistol.
Feel free to purchase a M&P. I find that auto indexing only happens when you insert a magazine with gusto. If you don't want the slide to drop, then don't insert a full mag with gusto. I can make mine drop with the insertion of a mag (Pro's and compacts) and I can insert full mags and have the slide stay open. It is all based on how much force you use in inserting a full magazine.
MyDads38
Member
The point being, is I want to be the one to decide when a round is chambered; not the gun. Maybe some guns are manufactured for the slide to close upon insertion of the magazine; Those are not for me.
If they're NOT manufactured to do this 100% of the time, how could you trust it in a life or death situation? You want to put yourself or your family in a situation where the gun DOESN'T do it, when it's needed the most? I wouldn't even consider something like this to be a "happy accident". If the slide is suppose to lock back after the last round is fired; I expect it to stay locked back until I rack it back, or use the slide release. (which ever is recommended by the manufacturer)
I myself, would not be comfortable with a firearm that did this; that's all I'm saying. And if the M&P series of pistols do this, I may have to rethink my next purchases.
USMarine1989
US Veteran
It will close on a full mag, Glocks do the same thing. M&Ps have a sweet spot that will allow for the slide to close between 45 and 55 degrees. As with any weapon you have to train to find consistency. It is a combat weapon system made for Military and Police use.
I love the feature and would like to figure out how to make it happen everytime... I thought it was an intended feature... I wished it was... I can make it happen sometimes...maybe I'll start paying attention to see if it's a particular magazine... it's a 5" M&P pro 9mm...I have 4 17rd mags (all oem) ... I discovered the feature at the range and thought ...wow ... this is cool ... then noticed it wasn't happening all the time... I'll watch it more and report back...Thanks for the info
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It is not really supposed to close on insertion of a magazine. Some do, sometimes. If it happens, it doesn't hurt anything. But, if it doesn't, it is not that anything is wrong, or that you are doing something wrong, or that you should do something differently. In addition, don't slam in the magazine trying to make it happen. You can damage the feed lips over time, ruining the magazine. Magazines are not repairable. They are designed to be discarded and replaced in the event of feed lip damage.
Bkreutz
US Veteran
Well, you could close the slide before loading the mag, then you'd have to rack the slide to load a round. I still don't understand the problem, like I said, what else would you do after inserting the mag into a pistol with the slide locked back except load a round into the chamber? It's the next logical step, whether that happens upon insertion of the mag, when you slingshot the slide, or when you thumb the slide lock, the end result is the same. If this bothers you, maybe you should reconsider the brand (or having a pistol at all)? You could always get a single action revolver, very safe system.
Arik
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If its life or death I'd want that slide closed automatically.
Like others said sometimes if you hit the magazine hard enough it will push up on the slide release and with no mag follower to hold it back the slide will close.
Then don't buy an auto. They all do this. At one point or another I have had Glocks, Sigs, M&Ps, HK, ...have all done it. Often it's just caused by inserting the mag a bit too aggressively. It is not a safety issue since nothing different happens between that and you letting go of the slide.
The slide is supposed to be locked back on a empty mag but when you insert a loaded mag it's no longer the same. The follower pushes the slide stop into place. Obviously with a loaded mag you no longer have the use of the follower and a hard enough bump will release the slide stop
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I certainly didn't mean to start a debate on gun safety or auto's vs revolvers... LOL... simply asking a question... My question was answered by saying this isn't an intended feature of the M&P pistols...I personally like the feature because it's one less step in a reload...3 gun...self defense...anytime a step can be taken away it makes sense...I never carry a gun with a loaded mag and not a round in the chamber...OH BOY!!! there goes another debate starter ha ha ha ... just kidding...
catcus-jack
Member
IT IS NOT SUPPOSED TO AUTOMATICALY CLOSE.Learn how to reload it correctly.
The reason the slide can close when you try to hammer the magazine in is simple physics. You are moving the entire pistol rapidly in one direction (up), while the slide stop lever remains in place. The frame moves up faster than the slide stop. The slide remains where it's at, the pistol essentially "passes" it as you're hammering the magazine in, which releases the slide and causes it to move into battery. The problem with intentionally doing this is that it is possible for the slide stop to release before the magazine is fully seated. And then we have . . . ? ? ? Anyone? Bueller?
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