Glock slide closes unexpectedly

The Fine as apposed to gross again

If you use the "slingshot" method to release you slide, just make sure you do not ride the slide forward as you can slow it down & cause a malfunction.

Hi Robert14.

Seen that "Ride the slide a lot"

My first carry pistol was a Browning Hi Power, in 1960! hammer down, empty chamber!

Fast forward to 1980, IPSC competition, Colt 45, my fine motor skills allowed me to... with one finger! press the trigger.. thumb to take off safety... even using that same thumb to drop the slide!

One major problem in that competition faze, in I think 1986, missed the safety in a US Nationals, dropped twenty points on a stage! All change, Glock 17, Mil Spec 9mm, shot thousands of rounds of that ammo; and because of my constant use of those two bits on my Colt 45, trigger and slide lock, I continued to use them (still using one digit!)

The first class Revolver to Glock 17 I taught (1987) 6 Instructors for a Tac team, they taught the group from that one day (but book form) class, and I did receive a nice letter after, telling of target rich environment engagements (Successfully completed) 500 + plus rounds each, no slam closed magazines changes, new guns, no malfunctions, none! except the ones I induced by inserting a few empty cases in the magazines!

The class were big, and strong! no problem with the SLL reloading, none, no problem with the malfunction drills using the sling shot, the Israeli tilt left yank straight back way.

Come to think of it, I even take the safety off my 870 with one finger too!


Keep Safe.

this is awesome to know... because I'm going to be getting a glock 22 here shortly. hehe.

On the HK forums, this is not unusual with the USP series (as several have stated above). To get it to happen reliably you have to slam the magazine in with a little more ompf. On the HK boards, reloads done in this style (which causes the slide to release-chambering a round) are sometimes as the "HK slap" method.

Some like that it happens, some don't. I personally prefer it......it makes reloads faster and smoother.

I've heard it's something to do with the polymer frame flexing just enough as the mag is slammed home to release the slide lock. If you've noticed, most everyone who has replied that it happens to them own polymer-framed pistols.

I've had it happen, and can make it happen on every polymer pistol I've owned. And that's been various Glocks, M&Ps, XDs and USPs. It's normal, don't worry about it.

This works on all my Steyrs, M9a1, M40, and SPP.

I consider it a feature, not a bug. I wish all my handguns did it.
I have not tried it on my glock yet.

-T

It's a pretty common phenomenon with Glocks. My G19 does it quite often. I actually wish it would do it everytime without fail. Speeeed.

My G17 does it when I slam one home, as does a USP9 I used to own (traded to a friend). Neither will do it unless you give the mag a good solid whack when inserting it into the magwell.

I kind of like the fact that they do it.