HELP! Need parts!

I need some help locating parts, guys. I have an old Bersa 380 model 86. The magazine release broke. I "brazed" a new ear on it but it only held for three shots(surprise, surprise)and the mag fell out. Does anyone know if the newer Thunder series parts interchange or where I might locate parts for this old piece? It probably isn't worth this effort but I really like this pistol and it shoots straight with never a jam. Any ideas would make my day.