I cannot answer your question directly, however I was once advised by an experienced gun builder (TOF) that if you purchase a new lock directly from the manufacturer, you know you have a lock that was assembled by them or those employed by them, to their specifications. Sometimes other vendors may sell a brand of lock assembled by individuals not directly associated with the manufacturer, even though it is new. Of course, if you buy a second hand locks, other factors may apply. No warranty is given with this advice, and of course your mileage may vary....
Curtis
