The Mossy 590A is a rock solid military issue shotgun that is far and above better than their commercial models, plus if all else fails, it will accept an issue M9 bayonet and with a very slight modification, the USMC bayonet. Of course I do have an early H+K M1S90 in defense configuration (7+1) with pistil grip. Bought it new in 1987 and it hasn't burbed ounce in all that time. I did manage to get a wooden butt stock with 13" LOP for my Mossy 590A a few years back. That 13" LOP made all the difference. The wooden butt stock with 13" LOP is a LE option only and Mossberg will deny even having them, but they do. Sort of wish I could get a 13"LOP for my M1S90 :-)
Retired Federal Law Enforcement
"I hope'n there're be Quail hunting in Heaven, or I'll be mighty disappointed."