I bought a Berretta 390 from Walmart back in 2003 for $529.00. Same gun as the old A390, just plain-jane version in flat black synthetic.
Along with my Nissan 18hp outboard, it has been the absolutely the best duck hunting related purchase I have ever made.
I have absolutley abused this gun. Mud, sand, saltwater, brackish water, dropped it, stepped on it, etc..., you name it.
Oil it when I get home, really clean it around 3 times a season (unless it gets soaked in saltwater).
Not telling how nasty the recoil spring & tube is because its never been taken out & cleanned other than spraying WD-40 down it & letting it drain.
No repairs, no breakages, no problems.
It has never jammed unless the shells failed (not guns fault) or I put the shells in the magazine backwards (DUH!).
Go to Wally World, see if they still sell them, if so, buy one today.