Well,...I was having this also happening to me.
My RSO buddy,who is the *Wikipedia of Guns*.....told me,I was "slamming" the mag in (home) to hard and to lighten up my action....also it would prevent any accidental discharge.
He said....."Ya don't need to slam 'er home"....I've since corrected myself and have no more issues.

 

That makes sense, thanks for the advice.

 

It's neither normal nor of any value outside drama-queen theatrics for a Glock slide to auto-close when a new magazine is inserted with an intimidating slam. There is no purpose-built machinery present to make that happen deliberately. If happens, it's the effect of mechanical shock and inertia displacing the slide slightly away from the rear of the slide stop lever. The SSL falls under spring pressure allowing the slide assembly to move forward into battery along with the next cartridge.

It's an uncontrolled action. The slamming may also pinch the portions of the weak hand holding the bottom of the new magazine as it gets slam inserted.

But...some like their Glocks to misbehave in such a manner. Go figure!

 

say again

 

Can the spring be weak? My new 19-5 does it.

 

It’s normal nothing to worry about, but don’t count on it happening every time.

 

T

It’s normal nothing to worry about, but don’t count on it happening every time.[/QUOTE Thanks for the courteous reply. Rob.

 

For about a bazillionth time...it is perfectly normal, nothing wrong with it, in fact, helpful for instant chambeirng upon mag reload.

 

it is perfectly normal, nothing wrong with it,

it is normal

It’s normal nothing to worry about,

Uh...wrong. Didn't you guys read post #4 from over a month ago?? Anyone read anything in the owner's manual saying it's 'another' way to drop the slide? It is NOT normal and wasn't built into the gun for it to happen, unless, of course, something is wrong or you're doing something wrong.

FWIW, you NEVER need to 'slam' a full mag in when the slide is locked back (aside from gamers, of course???). The first round doesn't hit the stripper rail when the slide is locked back.

 

You’d think those airbus wings they call Gen5 slide-releases would further assist in keeping the slide back...

I couldn’t resist, I detest the “improved, ambi” slide releases.

 

cool story, bro

 

It’s one of many ways to send the slide back into battery to chamber a round on a speed reload. I can’t do it very well so I do not practice or use that method. What I don’t want people to do (and yes I’ve seen it plenty) is to either seat the mag gently then take their hand off the mag and slam their palm onto the baseplate, or I don’t want people to sit there and pound the baseplate several times until the slide finally goes home. This costs time and time is everything. In my handgun instructor certification course, they said to rack the slide if that happens. I disagree because I’ve never seen it miss a round, though bullet bounce is a thing and I’ve seen rounds fail to feed and get hung up on the feed ramp from too much force.

But to answer your question, it is normal and some people can do it more often than others. The CZ P10C is an example of a gun that can do it almost every time and I think CZ engineered the slide stop in such a way to make that method work pretty regularly.

 

NORMAL if you bounce the slide lever spring.

Bonus feature for "competitors"--- saves those extra fractional seconds in having to rack, or thumb the release. Back on target faster.

 

I've fired over 1000 rounds through my new gun. Today something I hadn't seen before happened, on several occasions the slide closed when I inserted a magazine. I am new to shooting semi-automatic pistols, so I am not sure how common this is. The first time it happened it didn't really register in my brain what had happened and I racked the slide after it had already closed and a round went flying.

I can see where this kind of thing would great in certain situations, especially when it could be relied upon as the normal behavior, but it only seems to happen occasionally.

Is this normal?

It happens a lot.

Except when it doesn't.

And people start threads on it all the time.

It's just Glock Perfection at work.

Or not at work, depending on it you want it to happen or not.
:dancingbanana:

 

Or everyone who uses the “slide stop” should send their guns in too?

 

I'd just replace the slide stop lever. The spring in the one you have now may have prematurely weakened. Not really a recall issue. Glock Store has them for $10.

I can get both my 19 and 45 to do it and neither weapon has more than 1000 rounds through it. Now you may scold me for slamming in the mags on reloads and potentially damaging my precious Glocks.

 

Now you may scold me for slamming in the mags on reloads and potentially damaging my precious Glocks.

It's your gun...treat it like you wish.

 

Never have had that happen with any pistol under any circumstance. Seems like it would require a very zealous insertion of the magazine to make that happen, but I've never done it. When the slide is back the magazine should go home and click effortlessly. I kinda like the idea of it going in to battery when I slam the mag home though.

 

It's not a "macho" act. My wife did it the first time she tried the new G45:dancing:

Being left handed it would be a lot easier on a pre gen5

 

FWIW, you NEVER need to 'slam' a full mag in when the slide is locked back (aside from gamers, of course???). The first round doesn't hit the stripper rail when the slide is locked back.

if you are a high speed, stone cold, ninja- you'll be terminator cool under stress or time pressure,....John Wick

Us normal human gamers are truly humbled when we put the mag in with such insensitivity.

 

Not sure what you mean, but I like your posts, so I'm going with it.

 

One of the main reasons people set guns up to auto-forward is that they can't reach the slide stop with their strong thumb before their weak hand gets back on the gun. That applies to lots of different hands and guns, not just Glocks.

If you want to ensure your gun auto-forwards without excessive force, it's not hard to do. My personal experience with Glocks is that they rarely auto-forward with what I consider to be normal insertion force.

In the rare case one of my Glocks does auto-forward, it just happens concurrently with the action of my strong thumb, so doesn't really make much difference. I would never rely on it unless I had carefully tweaked the gun and practiced with it.

 

When I was shooting Pins, and reloading on the clock I had it happen to me several times. I noticed if I had the pistol tilted to the right a little, and Muzzle up a little it happened more often. Also was slapping the mag in.
I had the same thing with a Beretta 92FS when changing mags on the clock. I could feel it, and did not have to worry about dropping the slide.
Another thing was keeping track of the number of rounds fired, and changing mags while the last round was in the chamber.
With this I didn't have to worry about a reload with the slide locked back, and dropping the slide.
The mag change went faster, when fractions of seconds counted.

 

My guess is that the auto-forward on the Gen 5 is more common because the slide release is now ambidextrous, making it heavier. To auto-forward, the slide release has to resist the momentum of the magazine being seated firmly and the older Glock single sided slide releases did not have enough mass to do that consistently. The same thing is common on the CZ P10C. That gun has a heavier ambidextrous slide release and is fairly easy to consistently auto-forward the slide while reloading. Personally, I like the feature and see no down side to it.

 

Under extreme stress, fear, noise shock, pain, time constraints, bad cover position, blood and brain splatter, bad people shooting back, or zombies chewing on my toe, etc...IF/when I do an emergency reload, I am unlikely to bear in mind (nor care) that I can be gentle on inserting the mag and then do a controlled slide release, because that is the way the gun is really engineered to behave.

I am more likely to shove that mag in like I mean it (like a silly gamer), and IF I bounce the tiny spring, I will be pleasantly surprised (relieved) when the slide automatically shuts for me.

 

Listen up people.....I've been using Glocks for a very long time and if you are reloading a mag firmly, the slide will release and chamber a round.

IT IS NO FUDGING BIG DEAL....GET A CLUE.

 

Getting a clue is why people ask questions,

 

Normal or abnormal, it has happened to my G19 and 1911 a few times in the past. It’s never happened to smaller guns such as G26, G43, Kahr PM9, though.

 

I have to slam a mag so ridiculously hard into a Glock to make this happen that I just can't see how anyone is doing it unintentionally. Why slam a mag in that hard when the slide is locked back?

 

Does leaving your magazines loaded all the time weaken the springs?






:couch:

 

Under extreme stress, fear, noise shock, pain, time constraints, bad cover position, blood and brain splatter, bad people shooting back, or zombies chewing on my toe, etc...IF/when I do an emergency reload, I am unlikely to bear in mind (nor care) that I can be gentle on inserting the mag and then do a controlled slide release, because that is the way the gun is really engineered to behave.

I am more likely to shove that mag in like I mean it (like a silly gamer), and IF I bounce the tiny spring, I will be pleasantly surprised (relieved) when the slide automatically shuts for me.

Great response. My 19-5 is the only one that does this, Ihave a 42-43 and a 26.

 

Does leaving your magazines loaded all the time weaken the springs?






:couch:

My feeble mind thinks yes?