Model MK10 - Excellent condition, has factory red logo grips and 2 red logo mags. Comes with plastic box but no documentation. $580 shipped.
Also have one in stainless model KMK10, stainless pics in post #5. Rub marks around rear sight are from a red dot mount. Stainless has black logo grips and 2 mags. No documentation but includes a large plastic Ruger case for a Mark IV 10". $600 shipped.