I have owned 5 500's over the years. 4 12 gauges and a 16 gauge. Ranging from old poly-choke models, fixed chokes, to the accu-choke. I love the 500 platform it is dependable and easy to work on. Why didn't Mossberg ever make a 28g? I read one time that were plans but it was never produced. Remington makes the 28 in Wingmaster and Express models. I just like the Mossberg platform better no specific reason really.