Bought a few Glock 19 magazines at Cabela's this afternoon and found that one of them was not like my others. It didn't have the little cut out where you can see the metal inards. Is this an issue or what? Glenn and Pete, this is for you two since your my Glock go-to guys. But I'm sure there are other Glockers here as well.

The cutouts are on the ambi-release (not ambi-reversible) mags. How it works I have no clue, but I know thats what it means. lol

Oh so the one on the left can be used in a Glock that has the magazine release on the other side? Is that how I'm understanding it?

yeah the left mag can be used in a glock that has ambi release. But I thought that the 21sf is the only gun that had that feature....thats why im confused. The gen-4 is ambi reversible, which is different. Ambi-reversible mags have the notches on both sides.

I'm not talking about the notches on both sides, just the plastic cut-out where you see the inner shell.

i know i was just citing the difference between ambi release and ambi reversible mags