Welcome. I'm fairly new here myself. I too had issues with my new-in-the-box Bersa Thunder. Mag release would not work. Off for warranty service. Waiting tohear what the outcome will be. Please share your issue so wecan be aware. Thanks.Just bought my first Bersa (and had to send it in for warranty work! 😳). Looking forward to getting it back and spending some time with it.
( Thunder 380 Plus)
I had that same problem with a brand new CZ-75B in the past... sort of. If you pulled the trigger a certain way, the DA trigger would never release the hammer; but only if you pulled it a certain way (simultaneously rearward and to the left), which I guess I was doing. Sent it to CZ-USA for warranty work. When I got it back, the repair tag said there was a burr that they filed away. That must have been one heck of a burr! No indication of where it was located, though.My problem was that the hammer would never fall. You could pull the trigger as hard as you wanted and nothing, it would never trip the hammer.