The 870P has a plastic trigger guard? Are you certain? I'm not trying to insult you or argue, but I am under the impression that the 870P specifically has a metal trigger group and is much better polished than an express- as though it's an upgraded wingmaster. An new express, or even a "tactical" runs $400-500, whereas a new 870 Police Magnum runs $800. What would the price difference be if not metal parts and decent QC. Perhaps you mean some type of 870 tactical model with lots of fancy dress up parts? Usually these are just express models with extras.
No I'm talking a #25015 870P here.
They went to a plastic guard recently, I'm not sure that's such a big deal as the sintered aluminum of the metal one is not exactly confidence inspiring IMO but it matters to some. As far as fit and finish my 'P' was none too impressive, the action bars looked almost like sand castings, the parkerizing might as well have been spraypaint, the chamber was rough and there was just a lot of sharp edges and grittiness throughout.
A friend of mine had one with a consecutive serial number and it was the same story. I managed to get mine squared away with no small amount of effort on my part but I doubt I'll ever buy a recent Remington again.




















































