Not sure if this is the right place to post this but I'm fairly new. I'm a glock guy as some as you can figure by my handle bit I'm really considering an M&P for a few reasons.

While playing around with my glock tonight with the slide racked back I slammed a full mag in the pistol and the slide slammed home and chambered a round.

In my couple years of glock ownership that's the first time it's happend but in all honesty I can't say I've ever slammed a mag in my pistol that hard before.

Please don't make this a Glock bash but I'd really like to know if your M&P's do the same.

Glockman9mm - I am a member of a bunch of forums (both Gun and non-gun related) and must say - this is one of the very few forums that do not go out of their way to "bash" members whether they agree, disagree, etc. I am sure someone will jump in shortly with an answer.

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.:God Bless America:.

Thank you and that's good to hear!! I'm a member of many forums myself but I really like this place!

quote:
"While playing around with my glock tonight with the slide racked back I slammed a full mag in the pistol and the slide slammed home and chambered a round.

In my couple years of glock ownership that's the first time it's happend....."

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

I am not sure what else you thought would happen.

Slamming magazine's in to a pistol, like we some tough guy super hero do on TV, is not smart or sensible gun handling.
I am not trying to bash you Glockman, just pointing out your own words. The term you use, "playing around", also sends warning signals to me.

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Geoff. Since 1960.

In a word, yes. The M&Ps 'autoforward' much more readily than the Glocks. You can actually get almost any autopistol to do it if you slam a mag in hard enough. It is not a 'feature' I am fond of but some seem to like it although I have seen a couple of times it has happened and no round got loaded into the chamber. My M&P 45 curiously, does not routinely do it but almost all of the 65 or so M&P full size 9mms we have at the Academy do and have since they were brand new.

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Run Fast, Bite Hard!

I have a little bit of ownership and shooting experience with several different brands and calibers of semi-automatic pistols; H&K, Glock, Kahr, Kimber, Sig Sauer and Smith & Wesson. I've never experienced an auto-forward slide upon proper insertion of the magazine. Not saying it doesn't happen, only that it hasn't happened to me. I have however observed it when others have unnecessarily "slammed" the magazine into the magazine well of the pistol.

Never noticed it with any of mine, but I don't have an M&P at present and my two Glocks are old gen.2s.
Slamming a mag into the pistol might cause the slide catch to bounce a litte and let the slide fly home. Better would be to shove the mag in and seat it firmly with the heal of your hand, release slide, then give the mag a tug to see if it's locked in. Just like you'd do with an AR. Dale

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"Long live the S&W 3rd. Gen.!"

I prefer that my semi autos to auto froward. Saves the time, additional step for ready to fire under stress. My 9c will auto forward.

There is a genuine trick in getting those autos to do it. You actually have to insert the mag and at the last moment push more in a 45 degree angle than straight in. Beretta, Glock, M&Ps, Ruger SR-series...there are many models that do it and the speed that you can pick up over having to power-stroke or use the slide release is big.

I'm still on the fence of whether I like it or not. It is quick but if you don't do it right and have to bump it again you've lost any speed that you would have picked up.

Most semiauto pistols will do that if the magazine is slammed in hard enough. There is no reason to insert a magazine with that degree of force. Firm pressure to properly seat the magazine is all that is needed. Bill

I agree. "Playing around" with a full mag in your house? If you feel the need to have bullets in the mag to practice, I'd suggest some dummy rounds. Remember, everyone thats had an accidental discharge probably thought they were smarter than the next guy so it was o.k. to play around with live ammo.

I do want to say that while slamming the magazine into the pistol may sound like poor gun handling, putting the magazine into the gun "with authority" (as my father would say) is good practice to get into. One solid push, not slide it in then tap it home.

Any semi-auto will have the slide slam forward if you insert a mag hard enough. If you use the slide lock as a slide release, it will do it more often and require less force over time.

I know this is an issue with some semi-autos. The only time I have had it happen to me was with a Navy issue Berretta 9mm. Being well used it didnt even take that much force to get the slide to drop forward. Just in the future try to be a little more careful. Crazy things happen when you least exspect it.

It's not uncommon. My Ruger KP90 used to do it but the feature kind of uninstalled itself over time. Don't know if it was me or the gun but I don't really make a habit of slamming magazines...

Since I know you were adhering to all four rules I'm sure it was a non event...

I never insert the magazine until it's pointing where it needs to. In addition to the "auto release" slide there are these things called slamfires...

That's how I was taught.

My brand new 4536 requires a VERY authoritative push to lock the mag completely but I expect that to soften up a bit with use.

Common on HKs. Sort of like it. Saves the sling shot to feed the new round after a new mag is inserted. Don't want that to happen, don't slam it in there so hard. Easy to control on the HK.

Just curious as too what kind of "warning signals" are you getting?? Maybe glockman could have used a better choice of words..maybe not but that being said. I have a 45c, 9mm compact and .40 FS and none of then will hold onto a full magazine unless you take the palm of your hand and insert it with "authority" If you slide it in like a sissy it wants to fall back out. Now it will engage the slide and load a round if you hit it hard enough. A great feature if you are LEO in a gun fight and need that extra 1 second that could save your life.
I think geoff40 you were bashing glockman.
Glockman welcome and hope you stick around. Buy an M&P you'll love it.

Jesus Mary and Joesph, There is always one in the crowd

For the folks that offered the great info, thanks!

Glockman9mm: I come from a line of many glocks as well. My glocks rarely did it. My M&P's on the other hand will do it easily. So will my Sigpro SP2022

Thought the original question was good and honestly I'm surprised this is such a common occurrence. It has happened several times to me with my M&P 9c but I'm guessing it's because I sometimes seat the magazine too firmly. I think I do this at times because sometimes I seat a full mag with slide closed and it takes a good hit. Not sure if that's bad to be honest but it seems like its pretty normal. Anyway just thought I would share my experience.

I used to always load a full mag with the slide closed then rack the slide. Lately I've been doing it with the slide locked back and it goes in alot easier. I gave it some extra oomph last night and that's how I discovered the slide slamming home and chambering the round.

How do you release the slide after loading up a magazine??

If you use the slide catch to release the ,its possible that you have rounded up the slide catch cut-out

This has definitely happened to me with my 45c. My instructor noted the same thing that others here have said: the auto forwarding (which I dislike) is being caused by inserting the magazine at a bit of an angle. The 45c, new, as others have said is difficult to inset a full magazine. I have found that with practice and also use, the auto forwarding is less common. Btw, I've practiced this many times home and I don't think anything I was doing would raise anyone's warning flags... I've very carefully practiced my reloads in my home filling mags with snap caps (to duplicate the same pressure of a full mag). This is all done in a specific room that is for dry fire/ snap caps only.

OP: hope you can get it figured out with practice!

Common. I've done it with my Glocks and my M&P's. It's not a problem.

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Dave Frost

Ive done it on my XDm and my Springfield 1911. My buddys new loaded Springfield 1911 has done it as well. I can't get the "autoload" to happen everytime but I did notice like others have already stated. If you really palm the mag hard while inserting its more likely to happen.

I wish mine would do it all of the time actually. Why wouldn't it be a good feature? I feel anytime you're putting a mag into the gun a round should be chambered and ready to shoot. Why else would someone put a mag into a gun and then set it down or carry unchambered? Looking for more trouble that way in my opinion. Evey gun should be treated as if it were loaded anyways right?

I've been shooting pistols since the early 1980's.

I've had this happen with just about every type of pistol, except for my 1911's and Hi-Powers.

I've experienced it in the following:

S&W 5906/5946's
M&P's
Sig 226's
Beretta 92's
Glock 9mm's

Some designs more than others.

Some internet sites make this out to be a huge deal. I have never found it to be an issue. I have only had it happen while reloading under stress, where I may "slam" a magazine in hard enough to bounce the slide off of the slide release. Even then, It's a rare thing for me.

I've carried an issued M&P9 since the spring of 2006. I've had this happen to my M&P once that I can remember.

When sitting in my home, loading a gun, I'm not under stress. Therefore I don't slam the magazine, I insert it.

To me, it's a non-issue.

I'll not bash a Glock 9mm. I carried a Glock 19 off-duty for about 11 years. I still own a few Glock 9mm's. But I now carry a M&P9c when off-duty. When that's a bit too much (rare occasion) my M&P Shield has replaced my PPS and my Kahr PM9 as my official "little gun", and as my BUG at work.

Glockman, if you're interested in the M&P, then try to shoot one. I think you'll like it. Just keep an open mind and don't worry about the whole slide forward issue.

While it's not a feature I count on, I do sklam them in...if it closes--which it does most of the time--so much the better.

I have several 1911's and EAA Witnesses that do this regularly. I prefer it that way, and I mash the magazine in there hard enough to make sure it's properly seated. To me, it speeds up the reload and eliminates an extra step. I've had my 40 S&W Witness since 1990, reloaded it thousands of times, and have seen no ill effects from slamming a loaded mag in.