US Optics 3-17 for sale it is like new. I think it is 3-4 years old. Don't know about ring marks. For disclosure it has 3 specks of dust inside in the upper right quandrant. They are only visible below 10 X. Already spoke to USO of course it is covered. Has ARD sunshade. Price 2,000.00 obo shipped with insurance in the CONUS. I will throw in the rings. I have the original box and the permanent EREK cover and tools. I do not have the paperwork.