Pricing on a mossberg 500 tactical persuader shotgun?

I am looking for comparison pricing on a mossberg 500 tactical persuader. I found one at a local gun shop for 300 it is an 8 +1 capacity, has heat shield and pistol grip (unknown if ar butt stock is included in price) can anyone find a better price or a shop with a better price in Ohio or south Carolina? And where is the best place to get 00 buckshot cheap?