WHAT DOES REMINGTON 870 WINGMASTER 2 3/4 ONLY MEAN?

I can't analyze the shotgun for the reason that It might be an online order so I'm just a little leery of shopping for this one.Been considering finding a single. Seeking to see just what the going prices is likely to be on this gun. I'm NOT looking for the express, I indicate the actual Wingmaster. The 12 gauge Edition.The serial number has five d