I have a shooting bud who worked for a time at the Remington Rifle Company in Alabama, and I know another who actually had a plant tour. Remington redesigned their weapons so machines could do 99% of the work. In the front of the production line are machining centers, no humans, except for ones walking around picking up things that fell off the conveyor belts, or answering an automated alarms from a machine. At the end of the production line there was a bunch of "twenty somethings" all standing, no chairs, and these were the assemblers. These guys simply assembled the pieced together and did not make any adjustments. They do not have files according to the guy who visited. The bud who worked their stated they designed and built their guns so the assemblers only had to screw the things together. Instead of having individuals who understand the design, function, inter relationship of parts, what Remington wanted, and got, were people who could be trained to do their job in 15 minutes. The same people could work at a fast food Restaurant for their production lines are set up so anyone can come in, and within 15 minutes, make burgers. System Engineering of production flows eliminated the short order Cook. A short order Cook was a skilled individual, the guy could make a hundred different recipes, and had to sequence the food out the door by table. System engineering broke the tasks down to the point that the replacement worker did not even need to read or write, just simply follow a few simple directions. The newly engineered production lines allowed instantly replaceable, low skilled workers at starvation wages!
Firearms made by these individuals will function, but if you expect a smooth action, aligned sights, don't be surprised if you don't get either. The guys on the floor are incentivized to "get them out the door", they are not graded on whether the action is gritty as hell, and they would not know where to start. They can't adjust off center sights. And they can be replaced in an instant with another Monkey if they cause trouble.
If you send a defective firearm back, they will send you a new one in return. These sort of facilities may not have a gunsmith in the facility. I am old enough to remember the TV repair man. The TV repair man was skilled, often a WW2 Veteran who had electronic repair training during the war. When the semi conductor revolution hit, manufacturer's decided against building electronics that could be repaired. If it broke during the warranty period, they sent you a new replacement, or if the model had been discontinued, the new model. The broken electronics went to the scrap yard. If the item broke out of the warranty period, you could not get the thing fixed, and had to buy a new one. Now, with Apple electronics, the people who waited all night for an Apple 6S phone in 2015, for $800, have now found their device is unsupportable! Planned obsolescence is a bitch!
I am sure the firearms industry has been working an planned obsolescence strategies that will become obvious in the years ahead.
It has only recently been revealed in the inprint press that the third Generation Colts have 0.458" diameter chamber mouths. The only bullet types that will shoot well are plain lead hollow base bullets. I am glad I never purchased a Colt SAA. The Cowboy shooters types still trip over themselves for Colts, but they are not really into accuracy, they are more into dressing up.