[guardian1881]

I Own a Glock 21 now. While looking around for his little brother for a backup. I heard that a g30 mag. can be use in a g21. vise versa, for the mag are the same and they are the same cal. except one is a full size and the other is a compact. Now is this correct or am i not understanding it correctly.

 

[vwtechx]

I Own a Glock 21 now. While looking around for his little brother for a backup. I heard that a g30 mag. can be use in a g21. vise versa, for the mag are the same and they are the same cal. except one is a full size and the other is a compact. Now is this correct or am i not understanding it correctly.

Somewhat correct. You can use a g21 mag in a g30 but not the other way around. I use a 21 mag in my g30

 

[Glocked]

The 30 is my favorite. It's super accurate.

 

[ArmedCitizen30]

Have had one tucked inside the belt for almost 3 years now can't go wrong with a 30

 

[Happysniper1]

Hello, Guardian1881 and ArmedCitizen30, and WELCOME to the Forum!

If you would be so kind as to post a *Hi There* in the Introductions section, other Members would be able to welcome you as well.

Cheers!