RRA 9mm Carbine Questions for conversion to another mag type

[240nmc]

I have a RRA 9mm upper on a lower with the RRA magwell insert that accepts the modified Uzi mags. I was wondering if there are any other conversions for the mag well that would let me use Glock mags or MP5 mags? Or am I better off selling the RRA set up and switching over to a different set up all set up for glock or MP5 mags?

I searched a few of the websites but haven’t really found a definitive do this and do that....

Thanks for the feedback in advance....

 

[Goes-Bang]

I had the Uzi mag lower insert when the AR9's were just starting out as a thing. Since, I have switched over to a dedicated Glock mag lower, and it's far more reliable (and I'm much happier with the change).

 

[bfoosh006]

You can get Magwell inserts for Glock mags from https://getstern.com/mag-ad9/

However... you might need a bolt with Glock mag cuts.

 

[smokin.338]

g-block from torkmag works
also take a look at EndoMag