"Stockshox" - sorry for the mispelling. The Knox SpecOps is expected to hit the streets next month.
The only thing I am not too thrilled about on my Rem 870P pictured above is the flashlight mount. I am always afraid of overtightening and leaving marks on the extension. I have since ordered an LMT flashlight mount that is supposed to be an improvement over the typical ext tube mount. For those interested.
http://www.litemounttech.com/shotguns.htm
By the way, on the Rem 870 Police I have an XS Sight System installed (Big Dot Express set) - front and rear that is a snap to pick up in low light. Highly recommend. Other items of interest on the 870P - Tac Star 2000 flash light and coiled pressure pad, Wilson mag extension (the best on the market IMHO), Bungee cord sling, left hand safety conversion (tricky, involved and expensive), Mesa Tactical shell holder right side mount for lefties, Hogue 12 in. LOP stock and forend. Pending is a Knoxx SpecOps stock.
My Win 1300 pictured in the opening post has ghost ring combat sights (MMC) which I originally wanted on my Rem 870P but could not find when I was hunting for a new 870P. Now that I've used the XS sight system, I prefer the XS to the ghost rings. The XS sight is easy to "pick up," great in low light, and provides precision accuracy with slugs. The best of all possible worlds in my opinion.
SR, that's one heck of a setup you got there.
Delzo, I like yours too. I want to see more samples!!