My replicas (without exception) always come with that one screw or nipple
that was installed by that air-ratchet wielding fiend who works part time 3rd shift at Pietta (and weekends at Uberti) and practically welds one screw to the frame or cylinder. Your job when disassembling a new revolver is to find that
screw. It will be there somewhere and it will test your equipment and your religion.