I had a Beretta 391 Teknys deconstruct on me. The fancy replaceable rib would not stay on the gun.
Its hard to shoot a round of clays when the rib falls off every 3-5 shots.
Also the gas piston gets really carboned up like an AR bolt. Beretta bought it back from me because they didn't have fix.
I took the money and bought a Benelli SuperSport. Its hasn't jammed ever, even using 1oz 3 1/4 Dram shells.
It hasnt deconstructed either.
It kicks more than a gas gun but less than an Over/Under.
For clay games nothing is better than an Over/Under.
I wish Benelli sold 21 inch barrels for the SuperSport, I would make it a 3Gun specific shotgun.