Hi, my brother has a Bersa Thunder chambered in .380 I believe. He told me that the lever used to take the gun down for cleaning is stuck and will not rotate. I do not own a Bersa and I have not seen the gun yet, so I was wondering if anybody here has experienced this problem and how it might be fixed. I could diagnose a 1911, Springfield XD, and many other guns, but I know nothing about the Bersas. Any help would be appreciated. Thanks!