I can tell you why I like my 1300 over Mossy 500. 1300 racks fast & smooth, safety is a better spot, action lock lever is a "rounded bulb" instead of flat piece of metal that sucks to use.
My 1300 still shoots good, I bought a knoxx spec ops recoil stock for it. I can shoot it all day!
Is the "spec ops" recoil stock different than the Knoxx CompStock? I'm new to shotguns and want to buy a Winchester 1300 Defender and get a good stock.
Great thread.