Guyon, there have been reports that the keyed safety has engaged during normal use, requiring the key to take it off. Bad idea in a "Serious" tool. Remington told me that the older safety is interchangeable, but they're not supplying any. Try aftermarket, or better yet...
870s have been made and sold since the early 1950s. QC has been, by and large, excellent, and the things seem impossible to wear out. Since Remington has decides to be both PC( Keyed safety and mag dimples) and cost effective(Plastic parts, elimination of the ball detent on some models), send them a message. Buy used!!
Lots of used 870s out there, most in great shape, and the aftermarket addons are in abundance. Find a good used one and enjoy...
Even tho I've 4 870s in the house, I may pick up another ASAP. Who knows what will happen after the coronation, uh, election....