Isn't the "Slide Button" on the hammer a safety? I seem to remember having a T/C, back in the 70's, that had a safety on the hammer. As I remember, it didn't work! May be CRS at work here, but it's the best I can offer. At any rate, a trip back to T/C would update it to the easy-open, and new style hammer,,,,,,,,,,,,,,,,,,,Bug.