Hello I am new here and happy to be here. I recently purchased a Mauser .380 pistol imported by Interarms. It is blued and has wood grips. The serial # 01. 130XX. I was wondering when it was manufactured. I took it to the range today and fired 50 rounds. The first two magazines fired well. They both have the little finger rests on them The flat bottomed magazine had to FTF. I have never fired one before and was a bit surprised at the felt recoil but it was manageable. I think,maybe I need to replace the springs but am not sure any help would be appreciated