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AR15.COM
7/17/2010 2:42:16 PM EDT
Alright, I have a question that I've been working on for almost a month and unable to really resolve satisfactorily.  

I bought a Glock 23 and sold my 22 a while back and have a magazine issue.  The 13-round magazines that came with the 23 don't drop free when the magazine is empty.  The followers fail to put enough tension on the slide lock to push the magazine downwards.  Looking at them from the top, they don't push up snug against the feed lips like they need to to eject.  If I load a magazine from my 22 in, it ejects fine.  If I swap the follower from a 22 magazine into the 23 magazine it works fine.  The revision number on the followers that won't drop out is 8, and the ones that do drop are 6.  

http://lh5.ggpht.com/_UX3H2KNcqBU/TEIvEWBRRZI/AAAAAAAAAA8/LD0Pi7292wA/s800/IMG_20100717_173002.jpg
On the left, the magazine from the 23 with the #8 follower that won't drop, on the right, the #6 from the 22 that will drop.  

So the issue I have is: why is this happening?  Seems to me that the latest revision should work the best, but this doesn't seem to be the case.  I can't find #6 followers used anywhere (or new, because they're discontinued) to swap them in for my 23 magazines. And I figure buying new #8 followers probably will cause the same problem.  I have 2 of each magazines (15 and 13 round), and I'd like them all to function identically, and not have to pull the magazine out manually.  Since this is my carry weapon, I need the 23 magazines to drop free, even though I could just swap the followers that do drop to the 23.  I'd rather have all four working.

Anyone have any insight?  I'd be oh-so-indebted to you.
7/17/2010 2:54:52 PM EDT
[#1]
How hight the back of the follower is sitting is irrelevant, look on the side and see if the area on the front where the slide stop hits is higher or lower than the other mag. If that area is lower then I am suprised there is an issue as #8 are a newer follower than the 6s.   If they mags are not brand new I would assume that you may also have weak mag springs.  Besides, after hitting the mag release gravity should let the mag drop free if it is a full metal lined mag.
7/17/2010 2:56:58 PM EDT
[#2]
Do you only have that one 23 mag? get another and see if it still does it.
7/17/2010 3:18:38 PM EDT
[#3]
Do you only have that one 23 mag? get another and see if it still does it.

Both the magazines that came with it have this problem.

How hight the back of the follower is sitting is irrelevant, look on the side and see if the area on the front where the slide stop hits is higher or lower than the other mag. If that area is lower then I am suprised there is an issue as #8 are a newer follower than the 6s. If they mags are not brand new I would assume that you may also have weak mag springs. Besides, after hitting the mag release gravity should let the mag drop free if it is a full metal lined mag.

Sorry, I suppose I should've taken more than one picture to illustrate this.  Here is from the front, showing the follower on the 23 not snugly fitting the feed lips:
http://lh5.ggpht.com/_UX3H2KNcqBU/TEI59s-wGSI/AAAAAAAAABg/tEA4jZEo1YM/s800/IMG_20100717_181617.jpg
http://lh3.ggpht.com/_UX3H2KNcqBU/TEI5_bgLnsI/AAAAAAAAABk/2JUFhK9iPGI/s800/IMG_20100717_181610.jpg

Not the best photos, but I think it shows what's going on.  It's not the springs, as I took the baseplate off, tried them in my 22s and had the same result. Pretty stymied.
7/17/2010 3:57:08 PM EDT
[#4]
did you swap only the follower out and see what happened? - i may have read your post wrong.

im having the same issue with some 22 mags. (in my 22)

my trouble is that the mag will drop only 3/4 of the way out.

its like the mag body has bulged or something.

its only two mags that do this, and they are from around 94.

Merdoc
7/18/2010 4:16:49 PM EDT
[#5]
Yes.  Swapping out the follower from the 22 mags makes any of the four mags drop free.
7/18/2010 4:33:20 PM EDT
[#6]
huh, i guess just buy some followers, they are cheap.
7/18/2010 4:40:46 PM EDT
[#7]
Read?

They only sell #8s now.  The #8s won't push the magazines out.  The ones that work are #6.  Those were discontinued.
7/18/2010 5:04:21 PM EDT
[#8]
good luck and goodbye.
7/18/2010 5:59:32 PM EDT
[#9]
My #8 followers are the same, and rest slightly below the lips as yours do.  Do the mags drop free with gravity?  If not check for small burrs and edges around the mag cut and ambi cut.  Mine with the #8s drop free but are not propelled by the slide stop
7/19/2010 9:46:55 AM EDT
[#10]
hmmm... Maybe I can just go out and buy a bunch of older magazines with #6 followers, swap them in, and resell the magazines with #8 followers.

Dick move?

And there aren't really any visible problems with the magazines, but gravity isn't really enough to reliably drop them out.
7/19/2010 10:33:13 AM EDT
[#11]
Pretty odd. All my mags for my 23 have #8 followers in them and pop right out of the magwell with authority. I'd be curious if another new G23 mag with #8 follower would continue to have the problem your other two do. How many round through your G23 mags approximately? Not a lot of help, I know...
7/20/2010 9:41:14 AM EDT
[#12]
Glock is the shit.  I called their tech support and the guy said to just send in my 23's mags and he'd send me new ones.  And he also said I shouldn't be using #6 followers, and that to include a note and he'd send me #8s to put in them. Apparently after enough rounds down, the #6s develop a feeding reliability.

Sounds odd to me, because I've run thousands out of these magazines and never had so much as a failure to anything.  My Glock performed flawlessly without exception every round for years.  But he said "I'll just send you them and you can leave it up to your judgment whether you want to install them".  No argument here.