I have a CZ Tactical Sport in.40, and i purchased a new 9mm barrel and five - "10 round" 9mm mags from cz direct and i'm having nothing but problems with the mags.
With the slide in slide lock if i "drive the mags home" they get jammed, as best i can tell on the extractor. The slide release and the mag release become inoperable, neither will actuate. I have to either use a dowel and smack the feed lips or take the grips off, get a really firm grip on the mag and tug it down, it moves down a fraction of an inch and then i can use the mag release.
If i gently insert the mag, i don't have this issue, and i can shoot 9mm out of it, but then i also have another mag issue.
On some of the mags, the rounds get jammed in the magazine, like it's just a hair too wide and the rounds get jammed next to each other.
Is it possible that all 5 mags are out of spec? Or is it more likely that my gun is slightly out of spec? Or that the 10 round mags are not compatible with the .40 frame? (though others report this conversion working just fine)
I have 7 "10 round" .40 cal magazines and don't have these issues with those.