Hi guys. A buddy of mine just gave me an old Tec 22 that he bought NIB back in 1989. It is still in very good shape, but it does have one problem. It fires a round when you pull the trigger and then another when you release the trigger, and sometimes more that 2 in a row. Has anyone here ever had any experience one of these and know how to fix this problem? Should I replace the hammer and trigger? I can order these parts from Numrich and would like to try to fix it myself. I know it isnt the best 22 LR in the world, but it is still kinda cool and it was gift from a long time friend who was cleaning out his old stuff while moving into a new house. So I want to give it a good home and get it working properly. Thanks in advance.