I'm looking at a Mossberg online that the title describes as a Mossberg 500TK; however, down in the description it talks about a 535? The model number is 53263. I see that these forums have a category for 500's and 535's, so my two related questions are (1) am I looking at a 500 or 535 with this model number, and (2) what's the difference between the 500's and 535's? Is there a quality/reputation difference? Thanks, and have a nice day.