One last caveat here: When "a problem child" came back to us ref. the trigger spring, and those little tabs had begun to wear, I would "relax" the little curved area of the spring enough so it would stay put on the tab and then I would use a small pointed punch and "kick out" the metal of the tab at two or three locations around the circle of the tab to grab hold on the spring. That always worked, just be kind with the hammer.
Eric R.
