I have no experience with the Bersa, sorry to hear you're having problems. I do have first hand experience with the Kahr's and have shot a few. They have all preformed flawlessly. But given you signed on to a Kahr site it shouldn't come as a suprise you will find a lot of people who like Kahrs. The CW has a rifled bore and comes with one magazine. The other models will come with polygonal barrels and two magazines, but they will cost more. The actions are the same and all are good pistols. CH