It's been years since I was a serious Glock fan. My G-19's both went to my daughters.

Are Gen 4 glock 21 mags compatible with Gen 4 Glock 30's?

What's a good source for Gen 3 Glock 21 SF mags?

Thanks for the help.

Yes, they're compatible. They'll just stick out the bottom a bit. There are X-Grip adapters that you can use to fill in the gap.

quote:

Originally posted by Fredward:
It's been years since I was a serious Glock fan. My G-19's both went to my daughters.

Are Gen 4 glock 21 mags compatible with Gen 4 Glock 30's?

What's a good source for Gen 3 Glock 21 SF mags?

Thanks for the help.

The mags are compatible. The only G21's which required a specific dedicated mag were the ambi models, few and far between. Otherwise, older or newer G21 mags will run in your G30's.

There is no G21SF mag; the G21 mags will work just fine.

A G21SF (gen 3) is comparable to the G21 Gen 4 without backstrap.

For carry with the G30, I use a G30 mag with pearce baseplate, and for additional mags, standard G21 magazines. I don't find any need to fill the gap around the magazine, but your mileage may vary.

Now I know why the g21 was so inexpensive. It's apparently an ambi model. I've found a couple of sources for compatible mags, apparently some are "dual use" and OEM's are specific. Rather than hustle off the new type mags I mistakenly ordered, I may well just pick up a gen 4 model 30 as well.

I hadn't tried a 21 in many years. The slight changes Glock has made make it much more tolerable for me to shoot now.

Thanks!