My second one--like an idiot I traded away the first one--is forty years old. They are man-sized, wonderfully well-made rifles and very accurate, or were when I got mine. The lawyers stepped in and made them start manufacturing them with cross-hammer safeties they didn't need, but mine (and my 336 .30-30, unfortunately long gone) predated that change.
I'm really distressed to hear that quality may have suffered since the buy-out. The model dates back to 1891, and to the best of my knowledge no other rifle has ever been produced longer. If you can find a pre-safety model in good shape, it'll be worth grabbing up and running like hell.
By the way, I was told by someone who should know that a replacement firing pin has to be fitted by a smith. My brother lost the pin from his somehow. I ordered a new one for him, and it fits and functions perfectly. Of course, his 39A is also 40 years old, but I have trouble with the idea that expensive fitting is needed.