So I almost made an impulse buy at the exchange today. They have a Remington 870 18" 12gauge with knoxx stock in the cabinet for $575. I need to pick one up for the police academy range time. I cam home and looked through Remington's site and found the Police version of the 870. Parkerized was the biggest difference I saw. Does anyone have first hand knowledge about the "tactical" versions of the 870 Express versus the Police models of the 870? Thanks!