We beat the literal stuffing out of them, they are used as handles to manipulate slide etc. The optics of just a few years ago could not endure. Most everything made today by the larger companies simply do not fail very often. The technology gained from sand box has permeated the civilian market. We just don’t see many failures anymore from the latest generation. Early on holding zero was a thing, now you can literally take them off and put them back on and for the most part they hold zero. I do not suggest doing this and not verifying zero!