Mine has been tightened and runs fine. I'm not shooting it anymore. As it has 499 through it. Usually after a range session, I just wipe the external reciever/slide. With the towel used to hold the weapon parts during cleaning. And it holds its ugly luster. Ugly meaning solid and seemingly infinite. This one is only about 4 1/2 years old. So I don't know about the older ones. And usually with 45 autos the problems with ftf are a week recoil spring. And fte a week recoil spring or, mag cracked or deformed or, worn extractor or, bla(I just threw up, sorry).