SGM glock mags?

[John A.]

I recently finished two different AR builds which used glock mags.  I'll be upfront and honest that I've never been a big fan of glocks, so I have very little first hand experience with them.

But even then, unless you use a KRISS mag extension, the only other mag that I know of that has a decent capacity has been the SGM korean mags.

But, I'm curious if those are reputable mags in the first place. 

I've noticed on the 10mm, that the top of the feedlips are rubbing the bottom of my bolt carrier.  I have ordered a 15 round factory mod 20 mag to see if it fits better.

But, even the 45acp mags seem to be all over the place in quality.  Most of them drop free in my lower.  But a few are pretty tight and need to be pulled out by hand.  I'm assuming from the bodies swelling from being fully loaded. 

So, I'm curious of the OEM glock mags are the same way, especially in regards to the bodies swelling.

When I mentioned the top of the feedlips rubbing the 10mm bolt carrier, it is, but seems to be "breaking in" nicely.  While it's still slightly in contact, it's not stopping the bolt or anything.  The first maybe 3 shots was pretty sluggish, but after that, seems to be doing better.

But that's why I wanted to try a factory glock mag to see if it's any different or better.

[The_Shadow]

The SGMs have worked well in my Glock pistols

[John A.]

That's good to hear.  I was just curious considering how the 45acp tend to swell over time.

And the 10mm mag was rubbing the bottom of my bolt some initially.  That seems to have lessened now after I've shot it some while checking the load workups, but was still occurring nonetheless.

That was a big part of why I wanted to get an oem glock mag to see if it's the same way about rubbing the bolt.  Or if it had to do with how the lower was made if the mag catch was up a little too high?

Another reason for getting the factory glock mag is my hunting regs limit me to 10 rounds for semiauto.  I can chop a piece of wood and using it to limit the 15 rounder for hunting season and remove it any other time when it's not necessary.

[John A.]

The OEM factory glock 20 mag arrived this morning.

Upon checking it in the wolfpack lower, if the bottom of the bolt was coming into contact with it, it wasn't enough that I could notice.  So, I'm going to say that the factory mag will likely work better.

I also hand cycled a few of the 155 xtp's through it and encountered no problems with it.  So, I think while the SGM mag is working well enough for range work, but the actual glock mag would be me go to for this particular gun going forward.