I have an older 3" 870 that has taken a lickin' and keeps on tickin'.
Three countries, several provinces and states, from sea level & salt water mangroves in the sub-tropics to freshwater basins in the high prairies. Plus 35 to minus 30 C.
Everything from snipe and bobwhite to Canadas & Specklebellies ... puddle ducks, divers & sea ducks. It's never let me down. Decided to replace the old hardwood stock & forend with an aftermarket Max 4camo synthetic after 15 years or so as it was getting pretty rough.