Gen 5 Glock 17 question

[Tim_37128]

I’ve recently been issued a Gen 5 17 and after discussion with a few coworkers I’ve found something that concerns me.  
 

Reloading from slide locked to the rear, a small percentage of the time of you slam a magazine in the slide lock disengages and the slide returns to battery.  Not always, and it’s not a repeatable thing.  I know in some of the older M&Ps this was a design feature but it was repeatable 100% of the time a magazine was firmly inserted.  
 

Does anyone have any experience or information regarding this?  Design flaw?  Weak spring on the slide lock mechanism?  User error?  

[Pain103]

It was known to happen occasionally in older generations. 

[deerslayer]

It’s quite common with all generations as the gun breaks in.  I have a 24 that started doing it after only 400 rounds or so.  

[tercel89]

12 hours ago, Tim_37128 said:

I’ve recently been issued a Gen 5 17 and after discussion with a few coworkers I’ve found something that concerns me.  
 

Reloading from slide locked to the rear, a small percentage of the time of you slam a magazine in the slide lock disengages and the slide returns to battery.  Not always, and it’s not a repeatable thing.  I know in some of the older M&Ps this was a design feature but it was repeatable 100% of the time a magazine was firmly inserted.  
 

Does anyone have any experience or information regarding this?  Design flaw?  Weak spring on the slide lock mechanism?  User error?  

Its perfectly normal for a Glock to do that. At my job we had Gen 2, 3, and 4 glock 22. They all did it. Now we have Glock 17s Gen 5 and they do it too. Just depends on how hard you slam the magazine into it. Perfectly fine and nothing to worry about. If your supervisor or range guy isn't pushing you hard then just ease it into the gun until it locks in place. But most times we are being timed so I slam mine in place all the time and it goes forward automatically about 80% of the time. 

Edited February 25, 2021 by tercel89