Originally Posted by danf_fl
Should the breechface have a ridges like that near the firing pin?
Besides the suspected mag problem, those small ridges could be hanging up the cartridges on feeding.
This certainly looks like a problem area for hang ups, I think I'd find a good gunsmith so you have a solid opinion for returning the firearm. A friend of mine had a Bersa Thunder 40 and it had a bit of rough machine work showing inside the slide but nothing that interfered with flawless functioning but on a breach face from what your pics are showing it doesn't look right.