I am looking at getting a cheaper marine pump to keep in my truck and camper. Want it marine coated so I don't have to constantly wipe it down like my parkerized guns. The mossberg and remington 870 are out cause I am not wanting to spend 500+ for something that will be rarely used. Been looking at the Escort, Akkar and Daily marine guns (those two look identical), maybe even the Rock Island m5. Out of the cheaper shotguns, which one would be the better firearm? They are all sub 300 new so even if I missed one I should be looking at feel free to chime in!