View Full Version : New factory Glock mag not locking slide to rear when empty.

05-03-2011, 4:35 PM
I recently purchased 2 10 round Glock 19 mags and am having issues with 1 of them. About 90% of the time the slide will not lock back after firing the last round. The issue happens with many different types of ammo and its always the same mag.

The mag in question has a slightly different follower than the other that works 100% and I was curious if this is something that Glock would fix for me, or if there are others with this problem. I have about 11 mags now for my 3rd gen 19, and this is the first time I have ever had an issue with one of their mags.

**Update** the # on the follower is 2183-1

05-03-2011, 5:02 PM
I had a prob with a glock mag before, sent it to Glock and they mailed me a new one in return. The only thing that sucks is you have to pay postage. Maybe you can just buy a new follower?

05-03-2011, 6:02 PM
I recently got a new glock and bought a bunch of new mags. All of the gen 4 mags were not locking back on the last round. I got different ammo, and the problem was gone. I figured it was the ammo. The next time I went to the range I used the same problem ammo, but there was no problem. Slide locked back every time. I did not clean or make any changes to the gun. Keep loading and shooting those mags a few times and report back. I think they might be a little tight(which is usually good!?) but should break in.

05-03-2011, 6:04 PM
yea, let us know the follower #'s. Also are they the gen 4 mags with ambi mag release option?

05-04-2011, 12:00 PM
Yes they are both 4th gen mags. All my others are the older style.
I will let you know the follower # later, I forgot about it last night.

05-05-2011, 9:14 AM
Updated the first post with the follower #

05-05-2011, 11:11 PM
FWIW- My Gen 3 mags are 2183-1 and only have 1 mag catch cut out. My Gen 4 mags are 2183 with a 2 in the corner of the follower and have 2 mag catch cut outs; one on each side of the mag. The mags work like they are supposed to in my Gen 3 19. Hope this is helpful.

05-06-2011, 9:15 AM
Thanks for the info ^^
My other mag which is also a gen 4 has the 2183 with the 2 in the corner and that one works fine.