I was fortunate enough to tour their Springfield, MA facility a couple of years ago. That was the most amazing factory tour I have ever taken (and I have taken a LOT of them for my former jobs). It was an incredibly diverse mix of old and new technologies. In one area, there were workers painstakingly assembling and fitting revolvers by hand. IIRC, it averaged out to about two hours of assembly labor to make each revolver. That doesn't count labor involved in making all the components.
There was a forge operation that looked like something out of a documentary from the early 20th century. The forge was hammering away on the gun blanks, gradually turning them into frames. A lot of the parts were made on old Bridgeport milling machines, none of which appeared to be newer than 1940s vintage. Then there were CNC machines that were making parts for the more modern pistols. As I recall, one machine could make multiple slides at once.
Having worked in a manufacturing environment for several years, it was amazing that anyone could keep track of all the different production processes underway, let alone manage it in a halfway-efficient manner. If you can ever get a factory tour, go for it. It will amaze you.
