Mag issue with altered Glock 48

[borrowedtime69]

Hey there guys! Got a weird issue with my new Glock 48 I need help with please.

I bought 2 Shield Arms mags at a gun show, awesome way to improve round count! Then I sent for the Shield Arms steel mag release and installed it.

It wasnt too hard to install and it works great! Except, one of the Glock 10 rnd mags won't fall out of the gun when its (the mag) loaded, but will when its empty. I'm wondering if having it full makes it twist slightly so its too tight.

Anyone experience this? Any ideas if I can remedy the situation? I'm now hesitant to buy any more Glock 10 rounders so I'm not out $30+ . Thanks for any advice!

 

[unclenunzie]

Your best bet is to stick with one set or the other - that is, glock OEM catch and mags, or SA catch and mags, and not try to mix.

 

[Riomouse911]

For any who may not be familiar, the 15-round Shield Mags used in the Glock 48/43X usually have the shield metal Mag release installed as they’ll chew up the plastic housing of OEM Mag. The shield mags are metal-bodied, so they’re thinner-walled than the OEM mags.

It appears the one Mag has a touch of a bulge when it’s loaded so that the new shield Mag release isn’t moving enough to release the thicker OEM Mag. A few friends use the shield set up and I haven’t heard of any similars, but it may be because they’re sticking to just using the shield mags. I am using OEM mags/Mag release so I haven’t seen it personally.

I always mark my mags so I can tell them apart in case one acts up, I’d mark that one and set it aside. With these new FDE 17-round Glock OEM G19X mags, no. 3 won’t lock the slide back on the last round in either a G-45 and a G-17. I will use that one as my last mag should I roll with 3.



Stay safe.

 

[BreechFace]

A trick with Glocks (or other polymer framed pistols) is to put a single thickness of tape on the sides of the offending magazine and heat up the grip of the pistol with a hair dryer to get it pliable (doesn't have to get that hot) and place the taped up offending magazine into the gun and let it cool.

After the grip cools off, take off the tape from the magazine and see if it fixed the failure to drop free problem. If not add on more layer to a side and repeat.

NOTE: best to go one layer at a time so it expands the magazine well (grip) just enough to resolve the issue.

 

[jonnyc]

Since switching to Shield mags and mag catch, I only use my Glock 10 rounders for the range. That would fix your problem.

 

[BreechFace]

Since switching to Shield mags and mag catch, I only use my Glock 10 rounders for the range. That would fix your problem.

Me too, except for when I visit family in a non-freedom state with 10 round restrictions then the OEM Glock magazines are primary.

 

[3D-Seth]

Can you swap the OEM mag release back into the gun to see if that fixes the issue with the OEM mags?

 

[borrowedtime69]

Hmm... it was a bit of a "witch" for me to install, guess I could try it. Thanks!

 

[Riomouse911]

The metal shield mags may chew up the plastic Mag catch, so watch for damage closely. Once it starts you’ll have to swap it back to the shield Mag catch or another OEM so you don’t compromise the system.

And yes, popping the Mag catch “spring” in and out of the Mag catch is a bit of a bear until you’ve done it several times.

Let us know how you resolve the issue .

Stay safe.

 

[3D-Seth]

Hmm... it was a bit of a "witch" for me to install, guess I could try it. Thanks!

Yeah, they can be a pain, but worth the check I think to see if thats the reason your OEM mags seem to have an issue. If that doesn't solve it, then you know your SA mag catch is good to go.

The metal shield mags may chew up the plastic Mag catch, so watch for damage closely. Once it starts you’ll have to swap it back to the shield Mag catch or another OEM so you don’t compromise the system.

Yeah, my comment was more just to temporarily test function to see if it resolves the issue or not. Not necessarily to leave the OEM installed indefinitely.

 

[Riomouse911]

Yeah, they can be a paid, but worth the check I think to see if thats the reason your OEM mags seem to have an issue. If that doesn't solve it, then you know your SA mag catch is good to go.



Yeah, my comment was more just to temporarily test function to see if it resolves the issue or not. Not necessarily to leave the OEM installed indefinitely.

You’re on the right track .

Stay safe.

 

[Zerodefect]

Shave 0.25mm off of each side of the Glock mag until it drops free. It's not uncommon with the 9mm mags.

 

[BreechFace]

Shave 0.25mm off of each side of the Glock mag until it drops free. It's not uncommon with the 9mm mags.

yes, another way of dealing with it. Not a big deal, it’s only polymer that one has to tune up.

 

[borrowedtime69]

how would i go about shaving it without tearing it up? also, i could probably sand and re-polish it right? thank you!

 

[Riomouse911]

how would i go about shaving it without tearing it up? also, i could probably sand and re-polish it right? thank you!

I would:

Load it full and use 400 grit sandpaper with a flat wood backer (like a stir stick for paint) to sand any high spots or bulges, go slow and reinsert it a lot to test. Then once it drops free, follow that with a bit of 600 grit to smooth any rough spots and blend it.

Stay safe.