There lies the problem, the seller never stated a price. Never even stated what a joke price would be, so don't slam people for $500.00 offers. Buyers can not read the mind of what the seller wants for his stock, if it is above $700.00 state so. Otherwise don't yell down to people "no stock for you" because he offered what he could spend.
Cody is right, they are $175.00 parts. I got one from Benelli last year for $139.00 through my agency, but there was a price increase earlier this year. Yes, parts prices have always gone up for non-legal parts to civilians. But just tell they people what you want and you won't look like you do.
Rick