This might be the right place to post: Lone Wolf barrel for Glocks?

[SavageGerbil]

I could be wrong on this, but I'm pretty sure its the ejector thats the culprit for brass coming straight back rather than the extractor, might look into it before you buy a part thats not gonna fix your issue just to be safe

 

[krawl]

1) if you want to shoot 9mm, and it's for plinking, then just get a 9mm conversion barrel and some mags. if for some reason you have failures, then replace the $5 part.