Hello. I am new to CZ. I bought a CZ 75 P07 Duty last week. When I took it to the range, the first 32 shots were fine. On the next shot, the gun would not fire. After I took it home and took it apart, I found the trigger bar spring was missing. On the CZ Custom website I found a P07 trigger bar spring item number 1001049. Before I order it, can one of the experts tell me if the P07 spring is the same as the CZ 75 P-07 spring? Also are there any tricks to installing the new one? So far I am happy with the gun. I understand when you buy something used, you are taking a chance.