I have a used 870 Police Magnum for sale. I bought it new to use in a tactical shotgun course. In the course, I put 600 rounds of reduced recoil buck shot through it. No full power or magnum loads. It does show finish wear because of the class. This was a working gun, not a safe Queen or a show piece. I've taken pictures of the finish wear.
I put a Mesa Tactical pistol grip stock on it, a billet aluminum Mesa Tactical 6 shot side saddle, an orange anodized billet aluminum follower and a stainless spring in the mag tube, a Scattergun Technologies +2 extension, a Magpul forend with a rail section, and a Magpul flashlight holder with a Streamlight Protac flashlight.
I want $520.00 for everything, and I don't want to part it out.