Thanks for the info guys!! If I may, one more question? What is the difference between Mil Spec and consumer spec?
Thanks, Ron
True mil spec is the methodology of not only the materials used in a build, but the method by which each part is built. This goes DEEEEP.... temps for castings, heat treat method and time, amount of units tested per 100, and random test unit numbers. It also covers the type of testing for each part, whether it be an x ray, magnetic particle test, destructive test, etc.
This is why a 'True Mil Spec' rifle costs about $1600 minimum. Those tests are not cheap. And the extra steps that a builder like Daniel Defense or Colt put every part through adds tremendous cost. Also, for a true mil spec part, there is a paper trail and documentation for EVERYTHING; down to the foundry that sends over the billets of steel that become a barrel, to the origin and test on the type of oil the rifle is lubricated with. This is also why there are often lowers sold that are marked 'US Property' for a low price. They failed some kind of test in some way. And it does not mean every one failed, nor does it mean they are no good- they test one to 10 out of a hundred. If the number of fails is beyond acceptable guidelines, the WHOLE LOT is rejected. On jets, that means they go to the crusher or smelter. On rifles, they go to the surplus sale bin.
For domestic purposes, 'Mil Spec' means the parts match the size and basic material spec, without many of the tests and actual manufacturing process paths being taken. They look the same, they will fit the same/ are interchangeable, but they are not quite as stringent on the process of manufacturing.