Jamesy, that's just a no-name scope that came with the barrel when I bought the 500 combo. Only markings on the scope are "2.5 x 20". But it kills deerz dead (2 so far).
I had very little knowledge and was just getting back into hunting when I bought it. I had my mind set on an 870 when a buddy of mine told me that the 12ga 500 combo was on sale at Dick's.
I thought it was pretty cool because you were getting 2 guns in one, but I handled both side-by-side and settled on the Mossberg. Glad I did (for me...it's a matter of choice).