There is no equal - Magpul Industries SGA Shotgun Stock for Mossberg 500/590/590A1

This is the single best shotgun stock I've ever tried. Adjustable length of pull, super soft recoil pad, a comfortable grip angle, and it has an attractive, non-tacticool look. It's also quite hefty and durable. My only complaint with the Mossberg version is that you cannot remove the trigger assembly without removing the stock first. I took a Dremel tool and ground out a relief for the rear of the trigger guard to swing in and out of position. I wish Magpul would have done this from the factory, but it's only a minor gripe for an otherwise perfect stock.